61305380

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{23399}}^1$

素因数の和:23539

約数の個数: 24

約数和(自身を含む): 129729600

約数和(自身を除く): 68424220

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 23399, 46798, 93596, 116995, 233990, 467980, 3065269, 6130538, 12261076, 15326345, 30652690, 61305380]

約数ペア:

[(1, 61305380), (2, 30652690), (4, 15326345), (5, 12261076), (10, 6130538), (20, 3065269), (131, 467980), (262, 233990), (524, 116995), (655, 93596), (1310, 46798), (2620, 23399)]