51238980

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{811}}^1$

素因数の和:848

約数の個数: 144

約数和(自身を含む): 173793984

約数和(自身を除く): 122555004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 243, 260, 270, 324, 351, 390, 405, 468, 486, 540, 585, 702, 780, 810, 811, 972, 1053, 1170, 1215, 1404, 1620, 1622, 1755, 2106, 2340, 2430, 2433, 3159, 3244, 3510, 4055, 4212, 4860, 4866, 5265, 6318, 7020, 7299, 8110, 9732, 10530, 10543, 12165, 12636, 14598, 15795, 16220, 21060, 21086, 21897, 24330, 29196, 31590, 31629, 36495, 42172, 43794, 48660, 52715, 63180, 63258, 65691, 72990, 87588, 94887, 105430, 109485, 126516, 131382, 145980, 158145, 189774, 197073, 210860, 218970, 262764, 284661, 316290, 328455, 379548, 394146, 437940, 474435, 569322, 632580, 656910, 788292, 853983, 948870, 985365, 1138644, 1313820, 1423305, 1707966, 1897740, 1970730, 2561949, 2846610, 3415932, 3941460, 4269915, 5123898, 5693220, 8539830, 10247796, 12809745, 17079660, 25619490, 51238980]

約数ペア:

[(1, 51238980), (2, 25619490), (3, 17079660), (4, 12809745), (5, 10247796), (6, 8539830), (9, 5693220), (10, 5123898), (12, 4269915), (13, 3941460), (15, 3415932), (18, 2846610), (20, 2561949), (26, 1970730), (27, 1897740), (30, 1707966), (36, 1423305), (39, 1313820), (45, 1138644), (52, 985365), (54, 948870), (60, 853983), (65, 788292), (78, 656910), (81, 632580), (90, 569322), (108, 474435), (117, 437940), (130, 394146), (135, 379548), (156, 328455), (162, 316290), (180, 284661), (195, 262764), (234, 218970), (243, 210860), (260, 197073), (270, 189774), (324, 158145), (351, 145980), (390, 131382), (405, 126516), (468, 109485), (486, 105430), (540, 94887), (585, 87588), (702, 72990), (780, 65691), (810, 63258), (811, 63180), (972, 52715), (1053, 48660), (1170, 43794), (1215, 42172), (1404, 36495), (1620, 31629), (1622, 31590), (1755, 29196), (2106, 24330), (2340, 21897), (2430, 21086), (2433, 21060), (3159, 16220), (3244, 15795), (3510, 14598), (4055, 12636), (4212, 12165), (4860, 10543), (4866, 10530), (5265, 9732), (6318, 8110), (7020, 7299)]