9898850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 20160168

約数和(自身を除く): 10261318

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 97, 130, 157, 194, 314, 325, 485, 650, 785, 970, 1261, 1570, 2041, 2425, 2522, 3925, 4082, 4850, 6305, 7850, 10205, 12610, 15229, 20410, 30458, 31525, 51025, 63050, 76145, 102050, 152290, 197977, 380725, 395954, 761450, 989885, 1979770, 4949425, 9898850]

約数ペア:

[(1, 9898850), (2, 4949425), (5, 1979770), (10, 989885), (13, 761450), (25, 395954), (26, 380725), (50, 197977), (65, 152290), (97, 102050), (130, 76145), (157, 63050), (194, 51025), (314, 31525), (325, 30458), (485, 20410), (650, 15229), (785, 12610), (970, 10205), (1261, 7850), (1570, 6305), (2041, 4850), (2425, 4082), (2522, 3925)]