18368775

素因数分解:

$3^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:262

約数の個数: 60

約数和(自身を含む): 34929312

約数和(自身を除く): 16560537

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 81, 135, 141, 193, 225, 235, 405, 423, 579, 675, 705, 965, 1175, 1269, 1737, 2025, 2115, 2895, 3525, 3807, 4825, 5211, 6345, 8685, 9071, 10575, 14475, 15633, 19035, 26055, 27213, 31725, 43425, 45355, 78165, 81639, 95175, 130275, 136065, 226775, 244917, 390825, 408195, 680325, 734751, 1224585, 2040975, 3673755, 6122925, 18368775]

約数ペア:

[(1, 18368775), (3, 6122925), (5, 3673755), (9, 2040975), (15, 1224585), (25, 734751), (27, 680325), (45, 408195), (47, 390825), (75, 244917), (81, 226775), (135, 136065), (141, 130275), (193, 95175), (225, 81639), (235, 78165), (405, 45355), (423, 43425), (579, 31725), (675, 27213), (705, 26055), (965, 19035), (1175, 15633), (1269, 14475), (1737, 10575), (2025, 9071), (2115, 8685), (2895, 6345), (3525, 5211), (3807, 4825)]