20512234318

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:833

約数の個数: 64

約数和(自身を含む): 33126912000

約数和(自身を除く): 12614677682

約数列:

[1, 2, 31, 41, 62, 82, 103, 157, 206, 314, 499, 998, 1271, 2542, 3193, 4223, 4867, 6386, 6437, 8446, 9734, 12874, 15469, 16171, 20459, 30938, 32342, 40918, 51397, 78343, 102794, 130913, 156686, 199547, 261826, 399094, 501301, 634229, 663011, 1002602, 1268458, 1326022, 1593307, 2107277, 2428633, 3186614, 3212063, 4214554, 4857266, 6424126, 8069329, 16138658, 20553341, 41106682, 65325587, 99573953, 130651174, 199147906, 250149199, 330842489, 500298398, 661684978, 10256117159, 20512234318]

約数ペア:

[(1, 20512234318), (2, 10256117159), (31, 661684978), (41, 500298398), (62, 330842489), (82, 250149199), (103, 199147906), (157, 130651174), (206, 99573953), (314, 65325587), (499, 41106682), (998, 20553341), (1271, 16138658), (2542, 8069329), (3193, 6424126), (4223, 4857266), (4867, 4214554), (6386, 3212063), (6437, 3186614), (8446, 2428633), (9734, 2107277), (12874, 1593307), (15469, 1326022), (16171, 1268458), (20459, 1002602), (30938, 663011), (32342, 634229), (40918, 501301), (51397, 399094), (78343, 261826), (102794, 199547), (130913, 156686)]