220147215

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1\times {\mathrm{491}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 358774272

約数和(自身を除く): 138627057

約数列:

[1, 3, 5, 15, 71, 213, 355, 421, 491, 1065, 1263, 1473, 2105, 2455, 6315, 7365, 29891, 34861, 89673, 104583, 149455, 174305, 206711, 448365, 522915, 620133, 1033555, 3100665, 14676481, 44029443, 73382405, 220147215]

約数ペア:

[(1, 220147215), (3, 73382405), (5, 44029443), (15, 14676481), (71, 3100665), (213, 1033555), (355, 620133), (421, 522915), (491, 448365), (1065, 206711), (1263, 174305), (1473, 149455), (2105, 104583), (2455, 89673), (6315, 34861), (7365, 29891)]