20807765020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1\times {\mathrm{6661}}^1$

素因数の和:7151

約数の個数: 96

約数和(自身を含む): 51009388416

約数和(自身を除く): 30201623396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 421, 530, 742, 842, 1060, 1484, 1684, 1855, 2105, 2947, 3710, 4210, 5894, 6661, 7420, 8420, 11788, 13322, 14735, 22313, 26644, 29470, 33305, 44626, 46627, 58940, 66610, 89252, 93254, 111565, 133220, 156191, 186508, 223130, 233135, 312382, 353033, 446260, 466270, 624764, 706066, 780955, 932540, 1412132, 1561910, 1765165, 2471231, 2804281, 3123820, 3530330, 4942462, 5608562, 7060660, 9884924, 11217124, 12356155, 14021405, 19629967, 24712310, 28042810, 39259934, 49424620, 56085620, 78519868, 98149835, 148626893, 196299670, 297253786, 392599340, 594507572, 743134465, 1040388251, 1486268930, 2080776502, 2972537860, 4161553004, 5201941255, 10403882510, 20807765020]

約数ペア:

[(1, 20807765020), (2, 10403882510), (4, 5201941255), (5, 4161553004), (7, 2972537860), (10, 2080776502), (14, 1486268930), (20, 1040388251), (28, 743134465), (35, 594507572), (53, 392599340), (70, 297253786), (106, 196299670), (140, 148626893), (212, 98149835), (265, 78519868), (371, 56085620), (421, 49424620), (530, 39259934), (742, 28042810), (842, 24712310), (1060, 19629967), (1484, 14021405), (1684, 12356155), (1855, 11217124), (2105, 9884924), (2947, 7060660), (3710, 5608562), (4210, 4942462), (5894, 3530330), (6661, 3123820), (7420, 2804281), (8420, 2471231), (11788, 1765165), (13322, 1561910), (14735, 1412132), (22313, 932540), (26644, 780955), (29470, 706066), (33305, 624764), (44626, 466270), (46627, 446260), (58940, 353033), (66610, 312382), (89252, 233135), (93254, 223130), (111565, 186508), (133220, 156191)]