643438920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{75521}}^1$

素因数の和:75606

約数の個数: 64

約数和(自身を含む): 1957530240

約数和(自身を除く): 1314091320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 75521, 151042, 226563, 302084, 377605, 453126, 604168, 755210, 906252, 1132815, 1510420, 1812504, 2265630, 3020840, 4531260, 5361991, 9062520, 10723982, 16085973, 21447964, 26809955, 32171946, 42895928, 53619910, 64343892, 80429865, 107239820, 128687784, 160859730, 214479640, 321719460, 643438920]

約数ペア:

[(1, 643438920), (2, 321719460), (3, 214479640), (4, 160859730), (5, 128687784), (6, 107239820), (8, 80429865), (10, 64343892), (12, 53619910), (15, 42895928), (20, 32171946), (24, 26809955), (30, 21447964), (40, 16085973), (60, 10723982), (71, 9062520), (120, 5361991), (142, 4531260), (213, 3020840), (284, 2265630), (355, 1812504), (426, 1510420), (568, 1132815), (710, 906252), (852, 755210), (1065, 604168), (1420, 453126), (1704, 377605), (2130, 302084), (2840, 226563), (4260, 151042), (8520, 75521)]