255449740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20051}}^1$

素因数の和:20087

約数の個数: 72

約数和(自身を含む): 672062832

約数和(自身を除く): 416613092

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 20051, 40102, 80204, 100255, 140357, 200510, 260663, 280714, 401020, 521326, 561428, 701785, 982499, 1042652, 1303315, 1403570, 1824641, 1964998, 2606630, 2807140, 3649282, 3929996, 4912495, 5213260, 7298564, 9123205, 9824990, 12772487, 18246410, 19649980, 25544974, 36492820, 51089948, 63862435, 127724870, 255449740]

約数ペア:

[(1, 255449740), (2, 127724870), (4, 63862435), (5, 51089948), (7, 36492820), (10, 25544974), (13, 19649980), (14, 18246410), (20, 12772487), (26, 9824990), (28, 9123205), (35, 7298564), (49, 5213260), (52, 4912495), (65, 3929996), (70, 3649282), (91, 2807140), (98, 2606630), (130, 1964998), (140, 1824641), (182, 1403570), (196, 1303315), (245, 1042652), (260, 982499), (364, 701785), (455, 561428), (490, 521326), (637, 401020), (910, 280714), (980, 260663), (1274, 200510), (1820, 140357), (2548, 100255), (3185, 80204), (6370, 40102), (12740, 20051)]