20133160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 48600000

約数和(自身を除く): 28466840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 59, 76, 95, 118, 152, 190, 236, 295, 380, 449, 472, 590, 760, 898, 1121, 1180, 1796, 2242, 2245, 2360, 3592, 4484, 4490, 5605, 8531, 8968, 8980, 11210, 17062, 17960, 22420, 26491, 34124, 42655, 44840, 52982, 68248, 85310, 105964, 132455, 170620, 211928, 264910, 341240, 503329, 529820, 1006658, 1059640, 2013316, 2516645, 4026632, 5033290, 10066580, 20133160]

約数ペア:

[(1, 20133160), (2, 10066580), (4, 5033290), (5, 4026632), (8, 2516645), (10, 2013316), (19, 1059640), (20, 1006658), (38, 529820), (40, 503329), (59, 341240), (76, 264910), (95, 211928), (118, 170620), (152, 132455), (190, 105964), (236, 85310), (295, 68248), (380, 52982), (449, 44840), (472, 42655), (590, 34124), (760, 26491), (898, 22420), (1121, 17960), (1180, 17062), (1796, 11210), (2242, 8980), (2245, 8968), (2360, 8531), (3592, 5605), (4484, 4490)]