164784080

素因数分解:

$2^4\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{1613}}^1$

素因数の和:2903

約数の個数: 40

約数和(自身を含む): 383660712

約数和(自身を除く): 218876632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1277, 1613, 2554, 3226, 5108, 6385, 6452, 8065, 10216, 12770, 12904, 16130, 20432, 25540, 25808, 32260, 51080, 64520, 102160, 129040, 2059801, 4119602, 8239204, 10299005, 16478408, 20598010, 32956816, 41196020, 82392040, 164784080]

約数ペア:

[(1, 164784080), (2, 82392040), (4, 41196020), (5, 32956816), (8, 20598010), (10, 16478408), (16, 10299005), (20, 8239204), (40, 4119602), (80, 2059801), (1277, 129040), (1613, 102160), (2554, 64520), (3226, 51080), (5108, 32260), (6385, 25808), (6452, 25540), (8065, 20432), (10216, 16130), (12770, 12904)]