28391775

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 49758720

約数和(自身を除く): 21366945

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 109, 115, 151, 327, 345, 453, 545, 575, 755, 1635, 1725, 2265, 2507, 2725, 3473, 3775, 7521, 8175, 10419, 11325, 12535, 16459, 17365, 37605, 49377, 52095, 62675, 82295, 86825, 188025, 246885, 260475, 378557, 411475, 1135671, 1234425, 1892785, 5678355, 9463925, 28391775]

約数ペア:

[(1, 28391775), (3, 9463925), (5, 5678355), (15, 1892785), (23, 1234425), (25, 1135671), (69, 411475), (75, 378557), (109, 260475), (115, 246885), (151, 188025), (327, 86825), (345, 82295), (453, 62675), (545, 52095), (575, 49377), (755, 37605), (1635, 17365), (1725, 16459), (2265, 12535), (2507, 11325), (2725, 10419), (3473, 8175), (3775, 7521)]