20313470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{331}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 40983408

約数和(自身を除く): 20669938

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 331, 361, 646, 662, 722, 1615, 1655, 1805, 3230, 3310, 3610, 5627, 6137, 6289, 11254, 12274, 12578, 28135, 30685, 31445, 56270, 61370, 62890, 106913, 119491, 213826, 238982, 534565, 597455, 1069130, 1194910, 2031347, 4062694, 10156735, 20313470]

約数ペア:

[(1, 20313470), (2, 10156735), (5, 4062694), (10, 2031347), (17, 1194910), (19, 1069130), (34, 597455), (38, 534565), (85, 238982), (95, 213826), (170, 119491), (190, 106913), (323, 62890), (331, 61370), (361, 56270), (646, 31445), (662, 30685), (722, 28135), (1615, 12578), (1655, 12274), (1805, 11254), (3230, 6289), (3310, 6137), (3610, 5627)]