27281980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{461}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 62868960

約数和(自身を除く): 35586980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 269, 461, 538, 922, 1076, 1345, 1844, 2305, 2690, 2959, 4610, 5071, 5380, 5918, 9220, 10142, 11836, 14795, 20284, 25355, 29590, 50710, 59180, 101420, 124009, 248018, 496036, 620045, 1240090, 1364099, 2480180, 2728198, 5456396, 6820495, 13640990, 27281980]

約数ペア:

[(1, 27281980), (2, 13640990), (4, 6820495), (5, 5456396), (10, 2728198), (11, 2480180), (20, 1364099), (22, 1240090), (44, 620045), (55, 496036), (110, 248018), (220, 124009), (269, 101420), (461, 59180), (538, 50710), (922, 29590), (1076, 25355), (1345, 20284), (1844, 14795), (2305, 11836), (2690, 10142), (2959, 9220), (4610, 5918), (5071, 5380)]