66921580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{919}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 153941760

約数和(自身を除く): 87020180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 331, 662, 919, 1324, 1655, 1838, 3310, 3641, 3676, 4595, 6620, 7282, 9190, 10109, 14564, 18205, 18380, 20218, 36410, 40436, 50545, 72820, 101090, 202180, 304189, 608378, 1216756, 1520945, 3041890, 3346079, 6083780, 6692158, 13384316, 16730395, 33460790, 66921580]

約数ペア:

[(1, 66921580), (2, 33460790), (4, 16730395), (5, 13384316), (10, 6692158), (11, 6083780), (20, 3346079), (22, 3041890), (44, 1520945), (55, 1216756), (110, 608378), (220, 304189), (331, 202180), (662, 101090), (919, 72820), (1324, 50545), (1655, 40436), (1838, 36410), (3310, 20218), (3641, 18380), (3676, 18205), (4595, 14564), (6620, 10109), (7282, 9190)]