20161408

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5081}}^1$

素因数の和:5126

約数の個数: 32

約数和(自身を含む): 41469120

約数和(自身を除く): 21307712

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5081, 10162, 20324, 40648, 81296, 157511, 162592, 315022, 325184, 630044, 650368, 1260088, 2520176, 5040352, 10080704, 20161408]

約数ペア:

[(1, 20161408), (2, 10080704), (4, 5040352), (8, 2520176), (16, 1260088), (31, 650368), (32, 630044), (62, 325184), (64, 315022), (124, 162592), (128, 157511), (248, 81296), (496, 40648), (992, 20324), (1984, 10162), (3968, 5081)]