20101568880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{130259}}^1$

素因数の和:130918

約数の個数: 80

約数和(自身を含む): 62412255360

約数和(自身を除く): 42310686480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 643, 1286, 1929, 2572, 3215, 3858, 5144, 6430, 7716, 9645, 10288, 12860, 15432, 19290, 25720, 30864, 38580, 51440, 77160, 130259, 154320, 260518, 390777, 521036, 651295, 781554, 1042072, 1302590, 1563108, 1953885, 2084144, 2605180, 3126216, 3907770, 5210360, 6252432, 7815540, 10420720, 15631080, 31262160, 83756537, 167513074, 251269611, 335026148, 418782685, 502539222, 670052296, 837565370, 1005078444, 1256348055, 1340104592, 1675130740, 2010156888, 2512696110, 3350261480, 4020313776, 5025392220, 6700522960, 10050784440, 20101568880]

約数ペア:

[(1, 20101568880), (2, 10050784440), (3, 6700522960), (4, 5025392220), (5, 4020313776), (6, 3350261480), (8, 2512696110), (10, 2010156888), (12, 1675130740), (15, 1340104592), (16, 1256348055), (20, 1005078444), (24, 837565370), (30, 670052296), (40, 502539222), (48, 418782685), (60, 335026148), (80, 251269611), (120, 167513074), (240, 83756537), (643, 31262160), (1286, 15631080), (1929, 10420720), (2572, 7815540), (3215, 6252432), (3858, 5210360), (5144, 3907770), (6430, 3126216), (7716, 2605180), (9645, 2084144), (10288, 1953885), (12860, 1563108), (15432, 1302590), (19290, 1042072), (25720, 781554), (30864, 651295), (38580, 521036), (51440, 390777), (77160, 260518), (130259, 154320)]