1621717025

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{739}}^1\times {\mathrm{1439}}^1$

素因数の和:2249

約数の個数: 24

約数和(自身を含む): 2048083200

約数和(自身を除く): 426366175

約数列:

[1, 5, 25, 61, 305, 739, 1439, 1525, 3695, 7195, 18475, 35975, 45079, 87779, 225395, 438895, 1063421, 1126975, 2194475, 5317105, 26585525, 64868681, 324343405, 1621717025]

約数ペア:

[(1, 1621717025), (5, 324343405), (25, 64868681), (61, 26585525), (305, 5317105), (739, 2194475), (1439, 1126975), (1525, 1063421), (3695, 438895), (7195, 225395), (18475, 87779), (35975, 45079)]