161456680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 256

約数和(自身を含む): 497664000

約数和(自身を除く): 336207320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 31, 35, 38, 40, 44, 55, 56, 62, 70, 76, 77, 88, 89, 95, 110, 124, 133, 140, 152, 154, 155, 178, 190, 209, 217, 220, 248, 266, 280, 308, 310, 341, 356, 380, 385, 418, 434, 440, 445, 532, 589, 616, 620, 623, 665, 682, 712, 760, 770, 836, 868, 890, 979, 1045, 1064, 1085, 1178, 1240, 1246, 1330, 1364, 1463, 1540, 1672, 1691, 1705, 1736, 1780, 1958, 2090, 2170, 2356, 2387, 2492, 2660, 2728, 2759, 2926, 2945, 3080, 3115, 3382, 3410, 3560, 3916, 4123, 4180, 4340, 4712, 4774, 4895, 4984, 5320, 5518, 5852, 5890, 6230, 6479, 6764, 6820, 6853, 7315, 7832, 8246, 8360, 8455, 8680, 9548, 9790, 11036, 11704, 11780, 11837, 11935, 12460, 12958, 13528, 13640, 13706, 13795, 14630, 16492, 16910, 18601, 19096, 19313, 19580, 20615, 22072, 23560, 23674, 23870, 24920, 25916, 27412, 27590, 29260, 30349, 32395, 32984, 33820, 34265, 37202, 38626, 39160, 41230, 45353, 47348, 47740, 51832, 52421, 54824, 55180, 58520, 59185, 60698, 64790, 67640, 68530, 74404, 77252, 82460, 90706, 93005, 94696, 95480, 96565, 104842, 110360, 118370, 121396, 129580, 130207, 137060, 148808, 151745, 154504, 164920, 181412, 186010, 193130, 209684, 212443, 226765, 236740, 242792, 259160, 260414, 262105, 274120, 303490, 362824, 366947, 372020, 386260, 419368, 424886, 453530, 473480, 520828, 524210, 576631, 606980, 651035, 733894, 744040, 772520, 849772, 907060, 1041656, 1048420, 1062215, 1153262, 1213960, 1302070, 1467788, 1699544, 1814120, 1834735, 2096840, 2124430, 2306524, 2604140, 2883155, 2935576, 3669470, 4036417, 4248860, 4613048, 5208280, 5766310, 7338940, 8072834, 8497720, 11532620, 14677880, 16145668, 20182085, 23065240, 32291336, 40364170, 80728340, 161456680]

約数ペア:

[(1, 161456680), (2, 80728340), (4, 40364170), (5, 32291336), (7, 23065240), (8, 20182085), (10, 16145668), (11, 14677880), (14, 11532620), (19, 8497720), (20, 8072834), (22, 7338940), (28, 5766310), (31, 5208280), (35, 4613048), (38, 4248860), (40, 4036417), (44, 3669470), (55, 2935576), (56, 2883155), (62, 2604140), (70, 2306524), (76, 2124430), (77, 2096840), (88, 1834735), (89, 1814120), (95, 1699544), (110, 1467788), (124, 1302070), (133, 1213960), (140, 1153262), (152, 1062215), (154, 1048420), (155, 1041656), (178, 907060), (190, 849772), (209, 772520), (217, 744040), (220, 733894), (248, 651035), (266, 606980), (280, 576631), (308, 524210), (310, 520828), (341, 473480), (356, 453530), (380, 424886), (385, 419368), (418, 386260), (434, 372020), (440, 366947), (445, 362824), (532, 303490), (589, 274120), (616, 262105), (620, 260414), (623, 259160), (665, 242792), (682, 236740), (712, 226765), (760, 212443), (770, 209684), (836, 193130), (868, 186010), (890, 181412), (979, 164920), (1045, 154504), (1064, 151745), (1085, 148808), (1178, 137060), (1240, 130207), (1246, 129580), (1330, 121396), (1364, 118370), (1463, 110360), (1540, 104842), (1672, 96565), (1691, 95480), (1705, 94696), (1736, 93005), (1780, 90706), (1958, 82460), (2090, 77252), (2170, 74404), (2356, 68530), (2387, 67640), (2492, 64790), (2660, 60698), (2728, 59185), (2759, 58520), (2926, 55180), (2945, 54824), (3080, 52421), (3115, 51832), (3382, 47740), (3410, 47348), (3560, 45353), (3916, 41230), (4123, 39160), (4180, 38626), (4340, 37202), (4712, 34265), (4774, 33820), (4895, 32984), (4984, 32395), (5320, 30349), (5518, 29260), (5852, 27590), (5890, 27412), (6230, 25916), (6479, 24920), (6764, 23870), (6820, 23674), (6853, 23560), (7315, 22072), (7832, 20615), (8246, 19580), (8360, 19313), (8455, 19096), (8680, 18601), (9548, 16910), (9790, 16492), (11036, 14630), (11704, 13795), (11780, 13706), (11837, 13640), (11935, 13528), (12460, 12958)]