61852780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 145459440

約数和(自身を除く): 83606660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 121, 122, 220, 242, 244, 305, 419, 484, 605, 610, 671, 838, 1210, 1220, 1342, 1676, 2095, 2420, 2684, 3355, 4190, 4609, 6710, 7381, 8380, 9218, 13420, 14762, 18436, 23045, 25559, 29524, 36905, 46090, 50699, 51118, 73810, 92180, 101398, 102236, 127795, 147620, 202796, 253495, 255590, 281149, 506990, 511180, 562298, 1013980, 1124596, 1405745, 2811490, 3092639, 5622980, 6185278, 12370556, 15463195, 30926390, 61852780]

約数ペア:

[(1, 61852780), (2, 30926390), (4, 15463195), (5, 12370556), (10, 6185278), (11, 5622980), (20, 3092639), (22, 2811490), (44, 1405745), (55, 1124596), (61, 1013980), (110, 562298), (121, 511180), (122, 506990), (220, 281149), (242, 255590), (244, 253495), (305, 202796), (419, 147620), (484, 127795), (605, 102236), (610, 101398), (671, 92180), (838, 73810), (1210, 51118), (1220, 50699), (1342, 46090), (1676, 36905), (2095, 29524), (2420, 25559), (2684, 23045), (3355, 18436), (4190, 14762), (4609, 13420), (6710, 9218), (7381, 8380)]