2011181560

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1\times {\mathrm{823}}^1$

素因数の和:1340

約数の個数: 64

約数和(自身を含む): 4568256000

約数和(自身を除く): 2557074440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 307, 398, 614, 796, 823, 995, 1228, 1535, 1592, 1646, 1990, 2456, 3070, 3292, 3980, 4115, 6140, 6584, 7960, 8230, 12280, 16460, 32920, 61093, 122186, 163777, 244372, 252661, 305465, 327554, 488744, 505322, 610930, 655108, 818885, 1010644, 1221860, 1263305, 1310216, 1637770, 2021288, 2443720, 2526610, 3275540, 5053220, 6551080, 10106440, 50279539, 100559078, 201118156, 251397695, 402236312, 502795390, 1005590780, 2011181560]

約数ペア:

[(1, 2011181560), (2, 1005590780), (4, 502795390), (5, 402236312), (8, 251397695), (10, 201118156), (20, 100559078), (40, 50279539), (199, 10106440), (307, 6551080), (398, 5053220), (614, 3275540), (796, 2526610), (823, 2443720), (995, 2021288), (1228, 1637770), (1535, 1310216), (1592, 1263305), (1646, 1221860), (1990, 1010644), (2456, 818885), (3070, 655108), (3292, 610930), (3980, 505322), (4115, 488744), (6140, 327554), (6584, 305465), (7960, 252661), (8230, 244372), (12280, 163777), (16460, 122186), (32920, 61093)]