8012180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 18627840

約数和(自身を除く): 10615660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 461, 790, 869, 922, 1580, 1738, 1844, 2305, 3476, 4345, 4610, 5071, 8690, 9220, 10142, 17380, 20284, 25355, 36419, 50710, 72838, 101420, 145676, 182095, 364190, 400609, 728380, 801218, 1602436, 2003045, 4006090, 8012180]

約数ペア:

[(1, 8012180), (2, 4006090), (4, 2003045), (5, 1602436), (10, 801218), (11, 728380), (20, 400609), (22, 364190), (44, 182095), (55, 145676), (79, 101420), (110, 72838), (158, 50710), (220, 36419), (316, 25355), (395, 20284), (461, 17380), (790, 10142), (869, 9220), (922, 8690), (1580, 5071), (1738, 4610), (1844, 4345), (2305, 3476)]