128804920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{617}}^1$

素因数の和:952

約数の個数: 64

約数和(自身を含む): 308357280

約数和(自身を除く): 179552360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 307, 340, 614, 617, 680, 1228, 1234, 1535, 2456, 2468, 3070, 3085, 4936, 5219, 6140, 6170, 10438, 10489, 12280, 12340, 20876, 20978, 24680, 26095, 41752, 41956, 52190, 52445, 83912, 104380, 104890, 189419, 208760, 209780, 378838, 419560, 757676, 947095, 1515352, 1894190, 3220123, 3788380, 6440246, 7576760, 12880492, 16100615, 25760984, 32201230, 64402460, 128804920]

約数ペア:

[(1, 128804920), (2, 64402460), (4, 32201230), (5, 25760984), (8, 16100615), (10, 12880492), (17, 7576760), (20, 6440246), (34, 3788380), (40, 3220123), (68, 1894190), (85, 1515352), (136, 947095), (170, 757676), (307, 419560), (340, 378838), (614, 209780), (617, 208760), (680, 189419), (1228, 104890), (1234, 104380), (1535, 83912), (2456, 52445), (2468, 52190), (3070, 41956), (3085, 41752), (4936, 26095), (5219, 24680), (6140, 20978), (6170, 20876), (10438, 12340), (10489, 12280)]