261566455480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{9745397}}^1$

素因数の和:9745480

約数の個数: 64

約数和(自身を含む): 652551850080

約数和(自身を除く): 390985394600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1220, 1342, 2440, 2684, 3355, 5368, 6710, 13420, 26840, 9745397, 19490794, 38981588, 48726985, 77963176, 97453970, 107199367, 194907940, 214398734, 389815880, 428797468, 535996835, 594469217, 857594936, 1071993670, 1188938434, 2143987340, 2377876868, 2972346085, 4287974680, 4755753736, 5944692170, 6539161387, 11889384340, 13078322774, 23778768680, 26156645548, 32695806935, 52313291096, 65391613870, 130783227740, 261566455480]

約数ペア:

[(1, 261566455480), (2, 130783227740), (4, 65391613870), (5, 52313291096), (8, 32695806935), (10, 26156645548), (11, 23778768680), (20, 13078322774), (22, 11889384340), (40, 6539161387), (44, 5944692170), (55, 4755753736), (61, 4287974680), (88, 2972346085), (110, 2377876868), (122, 2143987340), (220, 1188938434), (244, 1071993670), (305, 857594936), (440, 594469217), (488, 535996835), (610, 428797468), (671, 389815880), (1220, 214398734), (1342, 194907940), (2440, 107199367), (2684, 97453970), (3355, 77963176), (5368, 48726985), (6710, 38981588), (13420, 19490794), (26840, 9745397)]