18773775

素因数分解:

$3^4\times 5^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:222

約数の個数: 60

約数和(自身を含む): 35529472

約数和(自身を除く): 16755697

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 73, 75, 81, 127, 135, 219, 225, 365, 381, 405, 635, 657, 675, 1095, 1143, 1825, 1905, 1971, 2025, 3175, 3285, 3429, 5475, 5715, 5913, 9271, 9525, 9855, 10287, 16425, 17145, 27813, 28575, 29565, 46355, 49275, 51435, 83439, 85725, 139065, 147825, 231775, 250317, 257175, 417195, 695325, 750951, 1251585, 2085975, 3754755, 6257925, 18773775]

約数ペア:

[(1, 18773775), (3, 6257925), (5, 3754755), (9, 2085975), (15, 1251585), (25, 750951), (27, 695325), (45, 417195), (73, 257175), (75, 250317), (81, 231775), (127, 147825), (135, 139065), (219, 85725), (225, 83439), (365, 51435), (381, 49275), (405, 46355), (635, 29565), (657, 28575), (675, 27813), (1095, 17145), (1143, 16425), (1825, 10287), (1905, 9855), (1971, 9525), (2025, 9271), (3175, 5913), (3285, 5715), (3429, 5475)]