28758075

素因数分解:

$3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 49580160

約数和(自身を除く): 20822085

約数列:

[1, 3, 5, 15, 25, 59, 67, 75, 97, 177, 201, 291, 295, 335, 485, 885, 1005, 1455, 1475, 1675, 2425, 3953, 4425, 5025, 5723, 6499, 7275, 11859, 17169, 19497, 19765, 28615, 32495, 59295, 85845, 97485, 98825, 143075, 162475, 296475, 383441, 429225, 487425, 1150323, 1917205, 5751615, 9586025, 28758075]

約数ペア:

[(1, 28758075), (3, 9586025), (5, 5751615), (15, 1917205), (25, 1150323), (59, 487425), (67, 429225), (75, 383441), (97, 296475), (177, 162475), (201, 143075), (291, 98825), (295, 97485), (335, 85845), (485, 59295), (885, 32495), (1005, 28615), (1455, 19765), (1475, 19497), (1675, 17169), (2425, 11859), (3953, 7275), (4425, 6499), (5025, 5723)]