128218480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:195

約数の個数: 160

約数和(自身を含む): 342978048

約数和(自身を除く): 214759568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 41, 52, 62, 65, 80, 82, 97, 104, 124, 130, 155, 164, 194, 205, 208, 248, 260, 310, 328, 388, 403, 410, 485, 496, 520, 533, 620, 656, 776, 806, 820, 970, 1040, 1066, 1240, 1261, 1271, 1552, 1612, 1640, 1940, 2015, 2132, 2480, 2522, 2542, 2665, 3007, 3224, 3280, 3880, 3977, 4030, 4264, 5044, 5084, 5330, 6014, 6305, 6355, 6448, 7760, 7954, 8060, 8528, 10088, 10168, 10660, 12028, 12610, 12710, 15035, 15908, 16120, 16523, 19885, 20176, 20336, 21320, 24056, 25220, 25420, 30070, 31816, 32240, 33046, 39091, 39770, 42640, 48112, 50440, 50840, 51701, 60140, 63632, 66092, 78182, 79540, 82615, 100880, 101680, 103402, 120280, 123287, 132184, 156364, 159080, 165230, 195455, 206804, 240560, 246574, 258505, 264368, 312728, 318160, 330460, 390910, 413608, 493148, 517010, 616435, 625456, 660920, 781820, 827216, 986296, 1034020, 1232870, 1321840, 1563640, 1602731, 1972592, 2068040, 2465740, 3127280, 3205462, 4136080, 4931480, 6410924, 8013655, 9862960, 12821848, 16027310, 25643696, 32054620, 64109240, 128218480]

約数ペア:

[(1, 128218480), (2, 64109240), (4, 32054620), (5, 25643696), (8, 16027310), (10, 12821848), (13, 9862960), (16, 8013655), (20, 6410924), (26, 4931480), (31, 4136080), (40, 3205462), (41, 3127280), (52, 2465740), (62, 2068040), (65, 1972592), (80, 1602731), (82, 1563640), (97, 1321840), (104, 1232870), (124, 1034020), (130, 986296), (155, 827216), (164, 781820), (194, 660920), (205, 625456), (208, 616435), (248, 517010), (260, 493148), (310, 413608), (328, 390910), (388, 330460), (403, 318160), (410, 312728), (485, 264368), (496, 258505), (520, 246574), (533, 240560), (620, 206804), (656, 195455), (776, 165230), (806, 159080), (820, 156364), (970, 132184), (1040, 123287), (1066, 120280), (1240, 103402), (1261, 101680), (1271, 100880), (1552, 82615), (1612, 79540), (1640, 78182), (1940, 66092), (2015, 63632), (2132, 60140), (2480, 51701), (2522, 50840), (2542, 50440), (2665, 48112), (3007, 42640), (3224, 39770), (3280, 39091), (3880, 33046), (3977, 32240), (4030, 31816), (4264, 30070), (5044, 25420), (5084, 25220), (5330, 24056), (6014, 21320), (6305, 20336), (6355, 20176), (6448, 19885), (7760, 16523), (7954, 16120), (8060, 15908), (8528, 15035), (10088, 12710), (10168, 12610), (10660, 12028)]