20453325

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 35997696

約数和(自身を除く): 15544371

約数列:

[1, 3, 5, 15, 23, 25, 69, 71, 75, 115, 167, 213, 345, 355, 501, 575, 835, 1065, 1633, 1725, 1775, 2505, 3841, 4175, 4899, 5325, 8165, 11523, 11857, 12525, 19205, 24495, 35571, 40825, 57615, 59285, 96025, 122475, 177855, 272711, 288075, 296425, 818133, 889275, 1363555, 4090665, 6817775, 20453325]

約数ペア:

[(1, 20453325), (3, 6817775), (5, 4090665), (15, 1363555), (23, 889275), (25, 818133), (69, 296425), (71, 288075), (75, 272711), (115, 177855), (167, 122475), (213, 96025), (345, 59285), (355, 57615), (501, 40825), (575, 35571), (835, 24495), (1065, 19205), (1633, 12525), (1725, 11857), (1775, 11523), (2505, 8165), (3841, 5325), (4175, 4899)]