196021520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{56983}}^1$

素因数の和:57039

約数の個数: 40

約数和(自身を含む): 466357056

約数和(自身を除く): 270335536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 56983, 113966, 227932, 284915, 455864, 569830, 911728, 1139660, 2279320, 2450269, 4558640, 4900538, 9801076, 12251345, 19602152, 24502690, 39204304, 49005380, 98010760, 196021520]

約数ペア:

[(1, 196021520), (2, 98010760), (4, 49005380), (5, 39204304), (8, 24502690), (10, 19602152), (16, 12251345), (20, 9801076), (40, 4900538), (43, 4558640), (80, 2450269), (86, 2279320), (172, 1139660), (215, 911728), (344, 569830), (430, 455864), (688, 284915), (860, 227932), (1720, 113966), (3440, 56983)]