20805219070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1\times {\mathrm{3061}}^1$

素因数の和:3601

約数の個数: 64

約数和(自身を含む): 40000988160

約数和(自身を除く): 19195769090

約数列:

[1, 2, 5, 10, 19, 38, 83, 95, 166, 190, 415, 431, 830, 862, 1577, 2155, 3061, 3154, 4310, 6122, 7885, 8189, 15305, 15770, 16378, 30610, 35773, 40945, 58159, 71546, 81890, 116318, 178865, 254063, 290795, 357730, 508126, 581590, 679687, 1270315, 1319291, 1359374, 2540630, 2638582, 3398435, 4827197, 6596455, 6796870, 9654394, 13192910, 24135985, 25066529, 48271970, 50133058, 109501153, 125332645, 219002306, 250665290, 547505765, 1095011530, 2080521907, 4161043814, 10402609535, 20805219070]

約数ペア:

[(1, 20805219070), (2, 10402609535), (5, 4161043814), (10, 2080521907), (19, 1095011530), (38, 547505765), (83, 250665290), (95, 219002306), (166, 125332645), (190, 109501153), (415, 50133058), (431, 48271970), (830, 25066529), (862, 24135985), (1577, 13192910), (2155, 9654394), (3061, 6796870), (3154, 6596455), (4310, 4827197), (6122, 3398435), (7885, 2638582), (8189, 2540630), (15305, 1359374), (15770, 1319291), (16378, 1270315), (30610, 679687), (35773, 581590), (40945, 508126), (58159, 357730), (71546, 290795), (81890, 254063), (116318, 178865)]