16240725

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 31917600

約数和(自身を除く): 15676875

約数列:

[1, 3, 5, 9, 15, 19, 25, 29, 45, 57, 75, 87, 95, 131, 145, 171, 225, 261, 285, 393, 435, 475, 551, 655, 725, 855, 1179, 1305, 1425, 1653, 1965, 2175, 2489, 2755, 3275, 3799, 4275, 4959, 5895, 6525, 7467, 8265, 9825, 11397, 12445, 13775, 18995, 22401, 24795, 29475, 34191, 37335, 41325, 56985, 62225, 72181, 94975, 112005, 123975, 170955, 186675, 216543, 284925, 360905, 560025, 649629, 854775, 1082715, 1804525, 3248145, 5413575, 16240725]

約数ペア:

[(1, 16240725), (3, 5413575), (5, 3248145), (9, 1804525), (15, 1082715), (19, 854775), (25, 649629), (29, 560025), (45, 360905), (57, 284925), (75, 216543), (87, 186675), (95, 170955), (131, 123975), (145, 112005), (171, 94975), (225, 72181), (261, 62225), (285, 56985), (393, 41325), (435, 37335), (475, 34191), (551, 29475), (655, 24795), (725, 22401), (855, 18995), (1179, 13775), (1305, 12445), (1425, 11397), (1653, 9825), (1965, 8265), (2175, 7467), (2489, 6525), (2755, 5895), (3275, 4959), (3799, 4275)]