202010120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{388481}}^1$

素因数の和:388505

約数の個数: 32

約数和(自身を含む): 489487320

約数和(自身を除く): 287477200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 388481, 776962, 1553924, 1942405, 3107848, 3884810, 5050253, 7769620, 10100506, 15539240, 20201012, 25251265, 40402024, 50502530, 101005060, 202010120]

約数ペア:

[(1, 202010120), (2, 101005060), (4, 50502530), (5, 40402024), (8, 25251265), (10, 20201012), (13, 15539240), (20, 10100506), (26, 7769620), (40, 5050253), (52, 3884810), (65, 3107848), (104, 1942405), (130, 1553924), (260, 776962), (520, 388481)]