20637830

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1663}}^1$

素因数の和:1760

約数の個数: 32

約数和(自身を含む): 39896064

約数和(自身を除く): 19258234

約数列:

[1, 2, 5, 10, 17, 34, 73, 85, 146, 170, 365, 730, 1241, 1663, 2482, 3326, 6205, 8315, 12410, 16630, 28271, 56542, 121399, 141355, 242798, 282710, 606995, 1213990, 2063783, 4127566, 10318915, 20637830]

約数ペア:

[(1, 20637830), (2, 10318915), (5, 4127566), (10, 2063783), (17, 1213990), (34, 606995), (73, 282710), (85, 242798), (146, 141355), (170, 121399), (365, 56542), (730, 28271), (1241, 16630), (1663, 12410), (2482, 8315), (3326, 6205)]