80016760

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 185680800

約数和(自身を除く): 105664040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 73, 134, 146, 268, 292, 335, 365, 409, 536, 584, 670, 730, 818, 1340, 1460, 1636, 2045, 2680, 2920, 3272, 4090, 4891, 8180, 9782, 16360, 19564, 24455, 27403, 29857, 39128, 48910, 54806, 59714, 97820, 109612, 119428, 137015, 149285, 195640, 219224, 238856, 274030, 298570, 548060, 597140, 1096120, 1194280, 2000419, 4000838, 8001676, 10002095, 16003352, 20004190, 40008380, 80016760]

約数ペア:

[(1, 80016760), (2, 40008380), (4, 20004190), (5, 16003352), (8, 10002095), (10, 8001676), (20, 4000838), (40, 2000419), (67, 1194280), (73, 1096120), (134, 597140), (146, 548060), (268, 298570), (292, 274030), (335, 238856), (365, 219224), (409, 195640), (536, 149285), (584, 137015), (670, 119428), (730, 109612), (818, 97820), (1340, 59714), (1460, 54806), (1636, 48910), (2045, 39128), (2680, 29857), (2920, 27403), (3272, 24455), (4090, 19564), (4891, 16360), (8180, 9782)]