20396625

素因数分解:

$3^1\times 5^3\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 34320000

約数和(自身を除く): 13923375

約数列:

[1, 3, 5, 15, 25, 75, 109, 125, 327, 375, 499, 545, 1497, 1635, 2495, 2725, 7485, 8175, 12475, 13625, 37425, 40875, 54391, 62375, 163173, 187125, 271955, 815865, 1359775, 4079325, 6798875, 20396625]

約数ペア:

[(1, 20396625), (3, 6798875), (5, 4079325), (15, 1359775), (25, 815865), (75, 271955), (109, 187125), (125, 163173), (327, 62375), (375, 54391), (499, 40875), (545, 37425), (1497, 13625), (1635, 12475), (2495, 8175), (2725, 7485)]