205422075

素因数分解:

$3^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1663}}^1$

素因数の和:1746

約数の個数: 60

約数和(自身を含む): 386983168

約数和(自身を除く): 181561093

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 81, 135, 183, 225, 305, 405, 549, 675, 915, 1525, 1647, 1663, 2025, 2745, 4575, 4941, 4989, 8235, 8315, 13725, 14967, 24705, 24945, 41175, 41575, 44901, 74835, 101443, 123525, 124725, 134703, 224505, 304329, 374175, 507215, 673515, 912987, 1122525, 1521645, 2536075, 2738961, 3367575, 4564935, 7608225, 8216883, 13694805, 22824675, 41084415, 68474025, 205422075]

約数ペア:

[(1, 205422075), (3, 68474025), (5, 41084415), (9, 22824675), (15, 13694805), (25, 8216883), (27, 7608225), (45, 4564935), (61, 3367575), (75, 2738961), (81, 2536075), (135, 1521645), (183, 1122525), (225, 912987), (305, 673515), (405, 507215), (549, 374175), (675, 304329), (915, 224505), (1525, 134703), (1647, 124725), (1663, 123525), (2025, 101443), (2745, 74835), (4575, 44901), (4941, 41575), (4989, 41175), (8235, 24945), (8315, 24705), (13725, 14967)]