20729555280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{31397}}^1$

素因数の和:31554

約数の個数: 240

約数和(自身を含む): 80171904384

約数和(自身を除く): 59442349104

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 131, 140, 144, 168, 180, 210, 240, 252, 262, 280, 315, 336, 360, 393, 420, 504, 524, 560, 630, 655, 720, 786, 840, 917, 1008, 1048, 1179, 1260, 1310, 1572, 1680, 1834, 1965, 2096, 2358, 2520, 2620, 2751, 3144, 3668, 3930, 4585, 4716, 5040, 5240, 5502, 5895, 6288, 7336, 7860, 8253, 9170, 9432, 10480, 11004, 11790, 13755, 14672, 15720, 16506, 18340, 18864, 22008, 23580, 27510, 31397, 31440, 33012, 36680, 41265, 44016, 47160, 55020, 62794, 66024, 73360, 82530, 94191, 94320, 110040, 125588, 132048, 156985, 165060, 188382, 219779, 220080, 251176, 282573, 313970, 330120, 376764, 439558, 470955, 502352, 565146, 627940, 659337, 660240, 753528, 879116, 941910, 1098895, 1130292, 1255880, 1318674, 1412865, 1507056, 1758232, 1883820, 1978011, 2197790, 2260584, 2511760, 2637348, 2825730, 3296685, 3516464, 3767640, 3956022, 4113007, 4395580, 4521168, 5274696, 5651460, 6593370, 7535280, 7912044, 8226014, 8791160, 9890055, 10549392, 11302920, 12339021, 13186740, 15824088, 16452028, 17582320, 19780110, 20565035, 22605840, 24678042, 26373480, 28791049, 31648176, 32904056, 37017063, 39560220, 41130070, 49356084, 52746960, 57582098, 61695105, 65808112, 74034126, 79120440, 82260140, 86373147, 98712168, 115164196, 123390210, 143955245, 148068252, 158240880, 164520280, 172746294, 185085315, 197424336, 230328392, 246780420, 259119441, 287910490, 296136504, 329040560, 345492588, 370170630, 431865735, 460656784, 493560840, 518238882, 575820980, 592273008, 690985176, 740341260, 863731470, 987121680, 1036477764, 1151641960, 1295597205, 1381970352, 1480682520, 1727462940, 2072955528, 2303283920, 2591194410, 2961365040, 3454925880, 4145911056, 5182388820, 6909851760, 10364777640, 20729555280]

約数ペア:

[(1, 20729555280), (2, 10364777640), (3, 6909851760), (4, 5182388820), (5, 4145911056), (6, 3454925880), (7, 2961365040), (8, 2591194410), (9, 2303283920), (10, 2072955528), (12, 1727462940), (14, 1480682520), (15, 1381970352), (16, 1295597205), (18, 1151641960), (20, 1036477764), (21, 987121680), (24, 863731470), (28, 740341260), (30, 690985176), (35, 592273008), (36, 575820980), (40, 518238882), (42, 493560840), (45, 460656784), (48, 431865735), (56, 370170630), (60, 345492588), (63, 329040560), (70, 296136504), (72, 287910490), (80, 259119441), (84, 246780420), (90, 230328392), (105, 197424336), (112, 185085315), (120, 172746294), (126, 164520280), (131, 158240880), (140, 148068252), (144, 143955245), (168, 123390210), (180, 115164196), (210, 98712168), (240, 86373147), (252, 82260140), (262, 79120440), (280, 74034126), (315, 65808112), (336, 61695105), (360, 57582098), (393, 52746960), (420, 49356084), (504, 41130070), (524, 39560220), (560, 37017063), (630, 32904056), (655, 31648176), (720, 28791049), (786, 26373480), (840, 24678042), (917, 22605840), (1008, 20565035), (1048, 19780110), (1179, 17582320), (1260, 16452028), (1310, 15824088), (1572, 13186740), (1680, 12339021), (1834, 11302920), (1965, 10549392), (2096, 9890055), (2358, 8791160), (2520, 8226014), (2620, 7912044), (2751, 7535280), (3144, 6593370), (3668, 5651460), (3930, 5274696), (4585, 4521168), (4716, 4395580), (5040, 4113007), (5240, 3956022), (5502, 3767640), (5895, 3516464), (6288, 3296685), (7336, 2825730), (7860, 2637348), (8253, 2511760), (9170, 2260584), (9432, 2197790), (10480, 1978011), (11004, 1883820), (11790, 1758232), (13755, 1507056), (14672, 1412865), (15720, 1318674), (16506, 1255880), (18340, 1130292), (18864, 1098895), (22008, 941910), (23580, 879116), (27510, 753528), (31397, 660240), (31440, 659337), (33012, 627940), (36680, 565146), (41265, 502352), (44016, 470955), (47160, 439558), (55020, 376764), (62794, 330120), (66024, 313970), (73360, 282573), (82530, 251176), (94191, 220080), (94320, 219779), (110040, 188382), (125588, 165060), (132048, 156985)]