128400770

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{571}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 234748800

約数和(自身を除く): 106348030

約数列:

[1, 2, 5, 10, 113, 199, 226, 398, 565, 571, 995, 1130, 1142, 1990, 2855, 5710, 22487, 44974, 64523, 112435, 113629, 129046, 224870, 227258, 322615, 568145, 645230, 1136290, 12840077, 25680154, 64200385, 128400770]

約数ペア:

[(1, 128400770), (2, 64200385), (5, 25680154), (10, 12840077), (113, 1136290), (199, 645230), (226, 568145), (398, 322615), (565, 227258), (571, 224870), (995, 129046), (1130, 113629), (1142, 112435), (1990, 64523), (2855, 44974), (5710, 22487)]