72123515

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{20231}}^1$

素因数の和:20290

約数の個数: 16

約数和(自身を含む): 93229056

約数和(自身を除く): 21105541

約数列:

[1, 5, 23, 31, 115, 155, 713, 3565, 20231, 101155, 465313, 627161, 2326565, 3135805, 14424703, 72123515]

約数ペア:

[(1, 72123515), (5, 14424703), (23, 3135805), (31, 2326565), (115, 627161), (155, 465313), (713, 101155), (3565, 20231)]