159640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 388080

約数和(自身を除く): 228440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 307, 520, 614, 1228, 1535, 2456, 3070, 3991, 6140, 7982, 12280, 15964, 19955, 31928, 39910, 79820, 159640]

約数ペア:

[(1, 159640), (2, 79820), (4, 39910), (5, 31928), (8, 19955), (10, 15964), (13, 12280), (20, 7982), (26, 6140), (40, 3991), (52, 3070), (65, 2456), (104, 1535), (130, 1228), (260, 614), (307, 520)]