2815860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 8007552

約数和(自身を除く): 5191692

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 661, 710, 852, 1065, 1322, 1420, 1983, 2130, 2644, 3305, 3966, 4260, 6610, 7932, 9915, 13220, 19830, 39660, 46931, 93862, 140793, 187724, 234655, 281586, 469310, 563172, 703965, 938620, 1407930, 2815860]

約数ペア:

[(1, 2815860), (2, 1407930), (3, 938620), (4, 703965), (5, 563172), (6, 469310), (10, 281586), (12, 234655), (15, 187724), (20, 140793), (30, 93862), (60, 46931), (71, 39660), (142, 19830), (213, 13220), (284, 9915), (355, 7932), (426, 6610), (661, 4260), (710, 3966), (852, 3305), (1065, 2644), (1322, 2130), (1420, 1983)]