20148605625

素因数分解:

$3^1\times 5^4\times {\mathrm{857}}^1\times {\mathrm{12539}}^1$

素因数の和:13419

約数の個数: 40

約数和(自身を含む): 33612115680

約数和(自身を除く): 13463510055

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 857, 1875, 2571, 4285, 12539, 12855, 21425, 37617, 62695, 64275, 107125, 188085, 313475, 321375, 535625, 940425, 1567375, 1606875, 4702125, 7836875, 10745923, 23510625, 32237769, 53729615, 161188845, 268648075, 805944225, 1343240375, 4029721125, 6716201875, 20148605625]

約数ペア:

[(1, 20148605625), (3, 6716201875), (5, 4029721125), (15, 1343240375), (25, 805944225), (75, 268648075), (125, 161188845), (375, 53729615), (625, 32237769), (857, 23510625), (1875, 10745923), (2571, 7836875), (4285, 4702125), (12539, 1606875), (12855, 1567375), (21425, 940425), (37617, 535625), (62695, 321375), (64275, 313475), (107125, 188085)]