153949820

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^2\times {\mathrm{211}}^1$

素因数の和:602

約数の個数: 36

約数和(自身を含む): 326536392

約数和(自身を除く): 172586572

約数列:

[1, 2, 4, 5, 10, 20, 191, 211, 382, 422, 764, 844, 955, 1055, 1910, 2110, 3820, 4220, 36481, 40301, 72962, 80602, 145924, 161204, 182405, 201505, 364810, 403010, 729620, 806020, 7697491, 15394982, 30789964, 38487455, 76974910, 153949820]

約数ペア:

[(1, 153949820), (2, 76974910), (4, 38487455), (5, 30789964), (10, 15394982), (20, 7697491), (191, 806020), (211, 729620), (382, 403010), (422, 364810), (764, 201505), (844, 182405), (955, 161204), (1055, 145924), (1910, 80602), (2110, 72962), (3820, 40301), (4220, 36481)]