57678980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 124104960

約数和(自身を除く): 66425980

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 151, 269, 284, 302, 355, 538, 604, 710, 755, 1076, 1345, 1420, 1510, 2690, 3020, 5380, 10721, 19099, 21442, 38198, 40619, 42884, 53605, 76396, 81238, 95495, 107210, 162476, 190990, 203095, 214420, 381980, 406190, 812380, 2883949, 5767898, 11535796, 14419745, 28839490, 57678980]

約数ペア:

[(1, 57678980), (2, 28839490), (4, 14419745), (5, 11535796), (10, 5767898), (20, 2883949), (71, 812380), (142, 406190), (151, 381980), (269, 214420), (284, 203095), (302, 190990), (355, 162476), (538, 107210), (604, 95495), (710, 81238), (755, 76396), (1076, 53605), (1345, 42884), (1420, 40619), (1510, 38198), (2690, 21442), (3020, 19099), (5380, 10721)]