78486875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:209

約数の個数: 40

約数和(自身を含む): 106278480

約数和(自身を除く): 27791605

約数列:

[1, 5, 17, 25, 83, 85, 89, 125, 415, 425, 445, 625, 1411, 1513, 2075, 2125, 2225, 7055, 7387, 7565, 10375, 10625, 11125, 35275, 36935, 37825, 51875, 55625, 125579, 176375, 184675, 189125, 627895, 881875, 923375, 945625, 3139475, 4616875, 15697375, 78486875]

約数ペア:

[(1, 78486875), (5, 15697375), (17, 4616875), (25, 3139475), (83, 945625), (85, 923375), (89, 881875), (125, 627895), (415, 189125), (425, 184675), (445, 176375), (625, 125579), (1411, 55625), (1513, 51875), (2075, 37825), (2125, 36935), (2225, 35275), (7055, 11125), (7387, 10625), (7565, 10375)]