28427740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{691}}^1$

素因数の和:739

約数の個数: 72

約数和(自身を含む): 69579216

約数和(自身を除く): 41151476

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 121, 170, 187, 220, 242, 340, 374, 484, 605, 691, 748, 935, 1210, 1382, 1870, 2057, 2420, 2764, 3455, 3740, 4114, 6910, 7601, 8228, 10285, 11747, 13820, 15202, 20570, 23494, 30404, 38005, 41140, 46988, 58735, 76010, 83611, 117470, 129217, 152020, 167222, 234940, 258434, 334444, 418055, 516868, 646085, 836110, 1292170, 1421387, 1672220, 2584340, 2842774, 5685548, 7106935, 14213870, 28427740]

約数ペア:

[(1, 28427740), (2, 14213870), (4, 7106935), (5, 5685548), (10, 2842774), (11, 2584340), (17, 1672220), (20, 1421387), (22, 1292170), (34, 836110), (44, 646085), (55, 516868), (68, 418055), (85, 334444), (110, 258434), (121, 234940), (170, 167222), (187, 152020), (220, 129217), (242, 117470), (340, 83611), (374, 76010), (484, 58735), (605, 46988), (691, 41140), (748, 38005), (935, 30404), (1210, 23494), (1382, 20570), (1870, 15202), (2057, 13820), (2420, 11747), (2764, 10285), (3455, 8228), (3740, 7601), (4114, 6910)]