666801675

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2557}}^1$

素因数の和:2653

約数の個数: 72

約数和(自身を含む): 1278283760

約数和(自身を除く): 611482085

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 61, 75, 95, 171, 183, 225, 285, 305, 475, 549, 855, 915, 1159, 1425, 1525, 2557, 2745, 3477, 4275, 4575, 5795, 7671, 10431, 12785, 13725, 17385, 23013, 28975, 38355, 48583, 52155, 63925, 86925, 115065, 145749, 155977, 191775, 242915, 260775, 437247, 467931, 575325, 728745, 779885, 1214575, 1403793, 2186235, 2339655, 2963563, 3643725, 3899425, 7018965, 8890689, 10931175, 11698275, 14817815, 26672067, 35094825, 44453445, 74089075, 133360335, 222267225, 666801675]

約数ペア:

[(1, 666801675), (3, 222267225), (5, 133360335), (9, 74089075), (15, 44453445), (19, 35094825), (25, 26672067), (45, 14817815), (57, 11698275), (61, 10931175), (75, 8890689), (95, 7018965), (171, 3899425), (183, 3643725), (225, 2963563), (285, 2339655), (305, 2186235), (475, 1403793), (549, 1214575), (855, 779885), (915, 728745), (1159, 575325), (1425, 467931), (1525, 437247), (2557, 260775), (2745, 242915), (3477, 191775), (4275, 155977), (4575, 145749), (5795, 115065), (7671, 86925), (10431, 63925), (12785, 52155), (13725, 48583), (17385, 38355), (23013, 28975)]