18612880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1627}}^1$

素因数の和:1664

約数の個数: 80

約数和(自身を含む): 50871744

約数和(自身を除く): 32258864

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 1627, 2288, 2860, 3254, 5720, 6508, 8135, 11440, 13016, 16270, 17897, 21151, 26032, 32540, 35794, 42302, 65080, 71588, 84604, 89485, 105755, 130160, 143176, 169208, 178970, 211510, 232661, 286352, 338416, 357940, 423020, 465322, 715880, 846040, 930644, 1163305, 1431760, 1692080, 1861288, 2326610, 3722576, 4653220, 9306440, 18612880]

約数ペア:

[(1, 18612880), (2, 9306440), (4, 4653220), (5, 3722576), (8, 2326610), (10, 1861288), (11, 1692080), (13, 1431760), (16, 1163305), (20, 930644), (22, 846040), (26, 715880), (40, 465322), (44, 423020), (52, 357940), (55, 338416), (65, 286352), (80, 232661), (88, 211510), (104, 178970), (110, 169208), (130, 143176), (143, 130160), (176, 105755), (208, 89485), (220, 84604), (260, 71588), (286, 65080), (440, 42302), (520, 35794), (572, 32540), (715, 26032), (880, 21151), (1040, 17897), (1144, 16270), (1430, 13016), (1627, 11440), (2288, 8135), (2860, 6508), (3254, 5720)]