917647940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{219533}}^1$

素因数の和:219572

約数の個数: 48

約数和(自身を含む): 2212902720

約数和(自身を除く): 1295254780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 219533, 439066, 878132, 1097665, 2195330, 2414863, 4171127, 4390660, 4829726, 8342254, 9659452, 12074315, 16684508, 20855635, 24148630, 41711270, 45882397, 48297260, 83422540, 91764794, 183529588, 229411985, 458823970, 917647940]

約数ペア:

[(1, 917647940), (2, 458823970), (4, 229411985), (5, 183529588), (10, 91764794), (11, 83422540), (19, 48297260), (20, 45882397), (22, 41711270), (38, 24148630), (44, 20855635), (55, 16684508), (76, 12074315), (95, 9659452), (110, 8342254), (190, 4829726), (209, 4390660), (220, 4171127), (380, 2414863), (418, 2195330), (836, 1097665), (1045, 878132), (2090, 439066), (4180, 219533)]