163967980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{811}}^1\times {\mathrm{919}}^1$

素因数の和:1750

約数の個数: 48

約数和(自身を含む): 376508160

約数和(自身を除く): 212540180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 811, 919, 1622, 1838, 3244, 3676, 4055, 4595, 8110, 8921, 9190, 10109, 16220, 17842, 18380, 20218, 35684, 40436, 44605, 50545, 89210, 101090, 178420, 202180, 745309, 1490618, 2981236, 3726545, 7453090, 8198399, 14906180, 16396798, 32793596, 40991995, 81983990, 163967980]

約数ペア:

[(1, 163967980), (2, 81983990), (4, 40991995), (5, 32793596), (10, 16396798), (11, 14906180), (20, 8198399), (22, 7453090), (44, 3726545), (55, 2981236), (110, 1490618), (220, 745309), (811, 202180), (919, 178420), (1622, 101090), (1838, 89210), (3244, 50545), (3676, 44605), (4055, 40436), (4595, 35684), (8110, 20218), (8921, 18380), (9190, 17842), (10109, 16220)]