28439125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 64

約数和(自身を含む): 43819776

約数和(自身を除く): 15380651

約数列:

[1, 5, 11, 13, 25, 37, 43, 55, 65, 125, 143, 185, 215, 275, 325, 407, 473, 481, 559, 715, 925, 1075, 1375, 1591, 1625, 2035, 2365, 2405, 2795, 3575, 4625, 5291, 5375, 6149, 7955, 10175, 11825, 12025, 13975, 17501, 17875, 20683, 26455, 30745, 39775, 50875, 59125, 60125, 69875, 87505, 103415, 132275, 153725, 198875, 227513, 437525, 517075, 661375, 768625, 1137565, 2187625, 2585375, 5687825, 28439125]

約数ペア:

[(1, 28439125), (5, 5687825), (11, 2585375), (13, 2187625), (25, 1137565), (37, 768625), (43, 661375), (55, 517075), (65, 437525), (125, 227513), (143, 198875), (185, 153725), (215, 132275), (275, 103415), (325, 87505), (407, 69875), (473, 60125), (481, 59125), (559, 50875), (715, 39775), (925, 30745), (1075, 26455), (1375, 20683), (1591, 17875), (1625, 17501), (2035, 13975), (2365, 12025), (2405, 11825), (2795, 10175), (3575, 7955), (4625, 6149), (5291, 5375)]