65253880

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{2857}}^1$

素因数の和:3439

約数の個数: 32

約数和(自身を含む): 147129840

約数和(自身を除く): 81875960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 1142, 2284, 2855, 2857, 4568, 5710, 5714, 11420, 11428, 14285, 22840, 22856, 28570, 57140, 114280, 1631347, 3262694, 6525388, 8156735, 13050776, 16313470, 32626940, 65253880]

約数ペア:

[(1, 65253880), (2, 32626940), (4, 16313470), (5, 13050776), (8, 8156735), (10, 6525388), (20, 3262694), (40, 1631347), (571, 114280), (1142, 57140), (2284, 28570), (2855, 22856), (2857, 22840), (4568, 14285), (5710, 11428), (5714, 11420)]