17601980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4211}}^1$

素因数の和:4250

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 24854980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4211, 8422, 16844, 21055, 42110, 46321, 80009, 84220, 92642, 160018, 185284, 231605, 320036, 400045, 463210, 800090, 880099, 926420, 1600180, 1760198, 3520396, 4400495, 8800990, 17601980]

約数ペア:

[(1, 17601980), (2, 8800990), (4, 4400495), (5, 3520396), (10, 1760198), (11, 1600180), (19, 926420), (20, 880099), (22, 800090), (38, 463210), (44, 400045), (55, 320036), (76, 231605), (95, 185284), (110, 160018), (190, 92642), (209, 84220), (220, 80009), (380, 46321), (418, 42110), (836, 21055), (1045, 16844), (2090, 8422), (4180, 4211)]