28118535

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{547}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 47347200

約数和(自身を除く): 19228665

約数列:

[1, 3, 5, 15, 23, 69, 115, 149, 345, 447, 547, 745, 1641, 2235, 2735, 3427, 8205, 10281, 12581, 17135, 37743, 51405, 62905, 81503, 188715, 244509, 407515, 1222545, 1874569, 5623707, 9372845, 28118535]

約数ペア:

[(1, 28118535), (3, 9372845), (5, 5623707), (15, 1874569), (23, 1222545), (69, 407515), (115, 244509), (149, 188715), (345, 81503), (447, 62905), (547, 51405), (745, 37743), (1641, 17135), (2235, 12581), (2735, 10281), (3427, 8205)]