19156793992460

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{27851}}^1\times {\mathrm{53653}}^1$

素因数の和:82154

約数の個数: 48

約数和(自身を含む): 40294225252512

約数和(自身を除く): 21137431260052

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 27851, 53653, 55702, 107306, 111404, 139255, 214612, 268265, 278510, 536530, 557020, 1073060, 17852491, 34391573, 35704982, 68783146, 71409964, 89262455, 137566292, 171957865, 178524910, 343915730, 357049820, 687831460, 1494289703, 2988579406, 5977158812, 7471448515, 14942897030, 29885794060, 957839699623, 1915679399246, 3831358798492, 4789198498115, 9578396996230, 19156793992460]

約数ペア:

[(1, 19156793992460), (2, 9578396996230), (4, 4789198498115), (5, 3831358798492), (10, 1915679399246), (20, 957839699623), (641, 29885794060), (1282, 14942897030), (2564, 7471448515), (3205, 5977158812), (6410, 2988579406), (12820, 1494289703), (27851, 687831460), (53653, 357049820), (55702, 343915730), (107306, 178524910), (111404, 171957865), (139255, 137566292), (214612, 89262455), (268265, 71409964), (278510, 68783146), (536530, 35704982), (557020, 34391573), (1073060, 17852491)]