1312217620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{407521}}^1$

素因数の和:407560

約数の個数: 48

約数和(自身を含む): 3286257408

約数和(自身を除く): 1974039788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 407521, 815042, 1630084, 2037605, 2852647, 4075210, 5705294, 8150420, 9372983, 11410588, 14263235, 18745966, 28526470, 37491932, 46864915, 57052940, 65610881, 93729830, 131221762, 187459660, 262443524, 328054405, 656108810, 1312217620]

約数ペア:

[(1, 1312217620), (2, 656108810), (4, 328054405), (5, 262443524), (7, 187459660), (10, 131221762), (14, 93729830), (20, 65610881), (23, 57052940), (28, 46864915), (35, 37491932), (46, 28526470), (70, 18745966), (92, 14263235), (115, 11410588), (140, 9372983), (161, 8150420), (230, 5705294), (322, 4075210), (460, 2852647), (644, 2037605), (805, 1630084), (1610, 815042), (3220, 407521)]