20090282015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1\times {\mathrm{263}}^1$

素因数の和:656

約数の個数: 64

約数和(自身を含む): 26679020544

約数和(自身を除く): 6588738529

約数列:

[1, 5, 17, 37, 85, 107, 185, 227, 263, 535, 629, 1135, 1315, 1819, 3145, 3859, 3959, 4471, 8399, 9095, 9731, 19295, 19795, 22355, 24289, 28141, 41995, 48655, 59701, 67303, 121445, 140705, 142783, 165427, 298505, 336515, 412913, 478397, 713915, 827135, 898693, 1014917, 1041217, 2064565, 2208937, 2391985, 4493465, 5074585, 5206085, 6388007, 11044685, 15277781, 17700689, 31940035, 37551929, 76388905, 88503445, 108596119, 187759645, 236356259, 542980595, 1181781295, 4018056403, 20090282015]

約数ペア:

[(1, 20090282015), (5, 4018056403), (17, 1181781295), (37, 542980595), (85, 236356259), (107, 187759645), (185, 108596119), (227, 88503445), (263, 76388905), (535, 37551929), (629, 31940035), (1135, 17700689), (1315, 15277781), (1819, 11044685), (3145, 6388007), (3859, 5206085), (3959, 5074585), (4471, 4493465), (8399, 2391985), (9095, 2208937), (9731, 2064565), (19295, 1041217), (19795, 1014917), (22355, 898693), (24289, 827135), (28141, 713915), (41995, 478397), (48655, 412913), (59701, 336515), (67303, 298505), (121445, 165427), (140705, 142783)]