28507815

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 58705920

約数和(自身を除く): 30198105

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 97, 105, 135, 189, 291, 311, 315, 485, 679, 873, 933, 945, 1455, 1555, 2037, 2177, 2619, 2799, 3395, 4365, 4665, 6111, 6531, 8397, 10185, 10885, 13095, 13995, 18333, 19593, 30167, 30555, 32655, 41985, 58779, 90501, 91665, 97965, 150835, 211169, 271503, 293895, 452505, 633507, 814509, 1055845, 1357515, 1900521, 3167535, 4072545, 5701563, 9502605, 28507815]

約数ペア:

[(1, 28507815), (3, 9502605), (5, 5701563), (7, 4072545), (9, 3167535), (15, 1900521), (21, 1357515), (27, 1055845), (35, 814509), (45, 633507), (63, 452505), (97, 293895), (105, 271503), (135, 211169), (189, 150835), (291, 97965), (311, 91665), (315, 90501), (485, 58779), (679, 41985), (873, 32655), (933, 30555), (945, 30167), (1455, 19593), (1555, 18333), (2037, 13995), (2177, 13095), (2619, 10885), (2799, 10185), (3395, 8397), (4365, 6531), (4665, 6111)]