131081920

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:258

約数の個数: 112

約数和(自身を含む): 326184768

約数和(自身を除く): 195102848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 97, 103, 160, 164, 194, 205, 206, 320, 328, 388, 410, 412, 485, 515, 656, 776, 820, 824, 970, 1030, 1312, 1552, 1640, 1648, 1940, 2060, 2624, 3104, 3280, 3296, 3880, 3977, 4120, 4223, 6208, 6560, 6592, 7760, 7954, 8240, 8446, 9991, 13120, 15520, 15908, 16480, 16892, 19885, 19982, 21115, 31040, 31816, 32960, 33784, 39770, 39964, 42230, 49955, 63632, 67568, 79540, 79928, 84460, 99910, 127264, 135136, 159080, 159856, 168920, 199820, 254528, 270272, 318160, 319712, 337840, 399640, 409631, 636320, 639424, 675680, 799280, 819262, 1272640, 1351360, 1598560, 1638524, 2048155, 3197120, 3277048, 4096310, 6554096, 8192620, 13108192, 16385240, 26216384, 32770480, 65540960, 131081920]

約数ペア:

[(1, 131081920), (2, 65540960), (4, 32770480), (5, 26216384), (8, 16385240), (10, 13108192), (16, 8192620), (20, 6554096), (32, 4096310), (40, 3277048), (41, 3197120), (64, 2048155), (80, 1638524), (82, 1598560), (97, 1351360), (103, 1272640), (160, 819262), (164, 799280), (194, 675680), (205, 639424), (206, 636320), (320, 409631), (328, 399640), (388, 337840), (410, 319712), (412, 318160), (485, 270272), (515, 254528), (656, 199820), (776, 168920), (820, 159856), (824, 159080), (970, 135136), (1030, 127264), (1312, 99910), (1552, 84460), (1640, 79928), (1648, 79540), (1940, 67568), (2060, 63632), (2624, 49955), (3104, 42230), (3280, 39964), (3296, 39770), (3880, 33784), (3977, 32960), (4120, 31816), (4223, 31040), (6208, 21115), (6560, 19982), (6592, 19885), (7760, 16892), (7954, 16480), (8240, 15908), (8446, 15520), (9991, 13120)]