31318240

素因数分解:

$2^5\times 5^1\times {\mathrm{195739}}^1$

素因数の和:195754

約数の個数: 24

約数和(自身を含む): 73989720

約数和(自身を除く): 42671480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 195739, 391478, 782956, 978695, 1565912, 1957390, 3131824, 3914780, 6263648, 7829560, 15659120, 31318240]

約数ペア:

[(1, 31318240), (2, 15659120), (4, 7829560), (5, 6263648), (8, 3914780), (10, 3131824), (16, 1957390), (20, 1565912), (32, 978695), (40, 782956), (80, 391478), (160, 195739)]