201020325

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1303}}^1$

素因数の和:1355

約数の個数: 72

約数和(自身を含む): 387100224

約数和(自身を除く): 186079899

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 51, 55, 75, 85, 121, 165, 187, 255, 275, 363, 425, 561, 605, 825, 935, 1275, 1303, 1815, 2057, 2805, 3025, 3909, 4675, 6171, 6515, 9075, 10285, 14025, 14333, 19545, 22151, 30855, 32575, 42999, 51425, 66453, 71665, 97725, 110755, 154275, 157663, 214995, 243661, 332265, 358325, 472989, 553775, 730983, 788315, 1074975, 1218305, 1661325, 2364945, 2680271, 3654915, 3941575, 6091525, 8040813, 11824725, 13401355, 18274575, 40204065, 67006775, 201020325]

約数ペア:

[(1, 201020325), (3, 67006775), (5, 40204065), (11, 18274575), (15, 13401355), (17, 11824725), (25, 8040813), (33, 6091525), (51, 3941575), (55, 3654915), (75, 2680271), (85, 2364945), (121, 1661325), (165, 1218305), (187, 1074975), (255, 788315), (275, 730983), (363, 553775), (425, 472989), (561, 358325), (605, 332265), (825, 243661), (935, 214995), (1275, 157663), (1303, 154275), (1815, 110755), (2057, 97725), (2805, 71665), (3025, 66453), (3909, 51425), (4675, 42999), (6171, 32575), (6515, 30855), (9075, 22151), (10285, 19545), (14025, 14333)]