64022020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{509}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 142228800

約数和(自身を除く): 78206780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 331, 380, 509, 662, 1018, 1324, 1655, 2036, 2545, 3310, 5090, 6289, 6620, 9671, 10180, 12578, 19342, 25156, 31445, 38684, 48355, 62890, 96710, 125780, 168479, 193420, 336958, 673916, 842395, 1684790, 3201101, 3369580, 6402202, 12804404, 16005505, 32011010, 64022020]

約数ペア:

[(1, 64022020), (2, 32011010), (4, 16005505), (5, 12804404), (10, 6402202), (19, 3369580), (20, 3201101), (38, 1684790), (76, 842395), (95, 673916), (190, 336958), (331, 193420), (380, 168479), (509, 125780), (662, 96710), (1018, 62890), (1324, 48355), (1655, 38684), (2036, 31445), (2545, 25156), (3310, 19342), (5090, 12578), (6289, 10180), (6620, 9671)]