18286840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 50803200

約数和(自身を除く): 32516360

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 23, 26, 40, 44, 46, 52, 55, 65, 88, 92, 104, 110, 115, 130, 139, 143, 184, 220, 230, 253, 260, 278, 286, 299, 440, 460, 506, 520, 556, 572, 598, 695, 715, 920, 1012, 1112, 1144, 1196, 1265, 1390, 1430, 1495, 1529, 1807, 2024, 2392, 2530, 2780, 2860, 2990, 3058, 3197, 3289, 3614, 5060, 5560, 5720, 5980, 6116, 6394, 6578, 7228, 7645, 9035, 10120, 11960, 12232, 12788, 13156, 14456, 15290, 15985, 16445, 18070, 19877, 25576, 26312, 30580, 31970, 32890, 35167, 36140, 39754, 41561, 61160, 63940, 65780, 70334, 72280, 79508, 83122, 99385, 127880, 131560, 140668, 159016, 166244, 175835, 198770, 207805, 281336, 332488, 351670, 397540, 415610, 457171, 703340, 795080, 831220, 914342, 1406680, 1662440, 1828684, 2285855, 3657368, 4571710, 9143420, 18286840]

約数ペア:

[(1, 18286840), (2, 9143420), (4, 4571710), (5, 3657368), (8, 2285855), (10, 1828684), (11, 1662440), (13, 1406680), (20, 914342), (22, 831220), (23, 795080), (26, 703340), (40, 457171), (44, 415610), (46, 397540), (52, 351670), (55, 332488), (65, 281336), (88, 207805), (92, 198770), (104, 175835), (110, 166244), (115, 159016), (130, 140668), (139, 131560), (143, 127880), (184, 99385), (220, 83122), (230, 79508), (253, 72280), (260, 70334), (278, 65780), (286, 63940), (299, 61160), (440, 41561), (460, 39754), (506, 36140), (520, 35167), (556, 32890), (572, 31970), (598, 30580), (695, 26312), (715, 25576), (920, 19877), (1012, 18070), (1112, 16445), (1144, 15985), (1196, 15290), (1265, 14456), (1390, 13156), (1430, 12788), (1495, 12232), (1529, 11960), (1807, 10120), (2024, 9035), (2392, 7645), (2530, 7228), (2780, 6578), (2860, 6394), (2990, 6116), (3058, 5980), (3197, 5720), (3289, 5560), (3614, 5060)]