28808217020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{19553}}^1$

素因数の和:19791

約数の個数: 96

約数和(自身を含む): 68158673856

約数和(自身を除く): 39350456836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 181, 185, 220, 362, 370, 407, 724, 740, 814, 905, 1628, 1810, 1991, 2035, 3620, 3982, 4070, 6697, 7964, 8140, 9955, 13394, 19553, 19910, 26788, 33485, 39106, 39820, 66970, 73667, 78212, 97765, 133940, 147334, 195530, 215083, 294668, 368335, 391060, 430166, 723461, 736670, 860332, 1075415, 1446922, 1473340, 2150830, 2893844, 3539093, 3617305, 4301660, 7078186, 7234610, 7958071, 14156372, 14469220, 15916142, 17695465, 31832284, 35390930, 38930023, 39790355, 70781860, 77860046, 79580710, 130946441, 155720092, 159161420, 194650115, 261892882, 389300230, 523785764, 654732205, 778600460, 1309464410, 1440410851, 2618928820, 2880821702, 5761643404, 7202054255, 14404108510, 28808217020]

約数ペア:

[(1, 28808217020), (2, 14404108510), (4, 7202054255), (5, 5761643404), (10, 2880821702), (11, 2618928820), (20, 1440410851), (22, 1309464410), (37, 778600460), (44, 654732205), (55, 523785764), (74, 389300230), (110, 261892882), (148, 194650115), (181, 159161420), (185, 155720092), (220, 130946441), (362, 79580710), (370, 77860046), (407, 70781860), (724, 39790355), (740, 38930023), (814, 35390930), (905, 31832284), (1628, 17695465), (1810, 15916142), (1991, 14469220), (2035, 14156372), (3620, 7958071), (3982, 7234610), (4070, 7078186), (6697, 4301660), (7964, 3617305), (8140, 3539093), (9955, 2893844), (13394, 2150830), (19553, 1473340), (19910, 1446922), (26788, 1075415), (33485, 860332), (39106, 736670), (39820, 723461), (66970, 430166), (73667, 391060), (78212, 368335), (97765, 294668), (133940, 215083), (147334, 195530)]