18109520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1583}}^1$

素因数の和:1620

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 31387312

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, 1583, 2288, 2860, 3166, 5720, 6332, 7915, 11440, 12664, 15830, 17413, 20579, 25328, 31660, 34826, 41158, 63320, 69652, 82316, 87065, 102895, 126640, 139304, 164632, 174130, 205790, 226369, 278608, 329264, 348260, 411580, 452738, 696520, 823160, 905476, 1131845, 1393040, 1646320, 1810952, 2263690, 3621904, 4527380, 9054760, 18109520]

約数ペア:

[(1, 18109520), (2, 9054760), (4, 4527380), (5, 3621904), (8, 2263690), (10, 1810952), (11, 1646320), (13, 1393040), (16, 1131845), (20, 905476), (22, 823160), (26, 696520), (40, 452738), (44, 411580), (52, 348260), (55, 329264), (65, 278608), (80, 226369), (88, 205790), (104, 174130), (110, 164632), (130, 139304), (143, 126640), (176, 102895), (208, 87065), (220, 82316), (260, 69652), (286, 63320), (440, 41158), (520, 34826), (572, 31660), (715, 25328), (880, 20579), (1040, 17413), (1144, 15830), (1430, 12664), (1583, 11440), (2288, 7915), (2860, 6332), (3166, 5720)]