31400055

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:150

約数の個数: 80

約数和(自身を含む): 60496128

約数和(自身を除く): 29096073

約数列:

[1, 3, 5, 9, 15, 27, 31, 41, 45, 61, 81, 93, 123, 135, 155, 183, 205, 279, 305, 369, 405, 465, 549, 615, 837, 915, 1107, 1271, 1395, 1647, 1845, 1891, 2501, 2511, 2745, 3321, 3813, 4185, 4941, 5535, 5673, 6355, 7503, 8235, 9455, 11439, 12505, 12555, 16605, 17019, 19065, 22509, 24705, 28365, 34317, 37515, 51057, 57195, 67527, 77531, 85095, 102951, 112545, 153171, 171585, 202581, 232593, 255285, 337635, 387655, 514755, 697779, 765855, 1012905, 1162965, 2093337, 3488895, 6280011, 10466685, 31400055]

約数ペア:

[(1, 31400055), (3, 10466685), (5, 6280011), (9, 3488895), (15, 2093337), (27, 1162965), (31, 1012905), (41, 765855), (45, 697779), (61, 514755), (81, 387655), (93, 337635), (123, 255285), (135, 232593), (155, 202581), (183, 171585), (205, 153171), (279, 112545), (305, 102951), (369, 85095), (405, 77531), (465, 67527), (549, 57195), (615, 51057), (837, 37515), (915, 34317), (1107, 28365), (1271, 24705), (1395, 22509), (1647, 19065), (1845, 17019), (1891, 16605), (2501, 12555), (2511, 12505), (2745, 11439), (3321, 9455), (3813, 8235), (4185, 7503), (4941, 6355), (5535, 5673)]