207864820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{2543}}^1$

素因数の和:2680

約数の個数: 48

約数和(自身を含む): 450471168

約数和(自身を除く): 242606348

約数列:

[1, 2, 4, 5, 10, 20, 61, 67, 122, 134, 244, 268, 305, 335, 610, 670, 1220, 1340, 2543, 4087, 5086, 8174, 10172, 12715, 16348, 20435, 25430, 40870, 50860, 81740, 155123, 170381, 310246, 340762, 620492, 681524, 775615, 851905, 1551230, 1703810, 3102460, 3407620, 10393241, 20786482, 41572964, 51966205, 103932410, 207864820]

約数ペア:

[(1, 207864820), (2, 103932410), (4, 51966205), (5, 41572964), (10, 20786482), (20, 10393241), (61, 3407620), (67, 3102460), (122, 1703810), (134, 1551230), (244, 851905), (268, 775615), (305, 681524), (335, 620492), (610, 340762), (670, 310246), (1220, 170381), (1340, 155123), (2543, 81740), (4087, 50860), (5086, 40870), (8174, 25430), (10172, 20435), (12715, 16348)]