72685160

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{29789}}^1$

素因数の和:29861

約数の個数: 32

約数和(自身を含む): 166228200

約数和(自身を除く): 93543040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 29789, 59578, 119156, 148945, 238312, 297890, 595780, 1191560, 1817129, 3634258, 7268516, 9085645, 14537032, 18171290, 36342580, 72685160]

約数ペア:

[(1, 72685160), (2, 36342580), (4, 18171290), (5, 14537032), (8, 9085645), (10, 7268516), (20, 3634258), (40, 1817129), (61, 1191560), (122, 595780), (244, 297890), (305, 238312), (488, 148945), (610, 119156), (1220, 59578), (2440, 29789)]