11619280

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2381}}^1$

素因数の和:2455

約数の個数: 40

約数和(自身を含む): 27469224

約数和(自身を除く): 15849944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2381, 2440, 4762, 4880, 9524, 11905, 19048, 23810, 38096, 47620, 95240, 145241, 190480, 290482, 580964, 726205, 1161928, 1452410, 2323856, 2904820, 5809640, 11619280]

約数ペア:

[(1, 11619280), (2, 5809640), (4, 2904820), (5, 2323856), (8, 1452410), (10, 1161928), (16, 726205), (20, 580964), (40, 290482), (61, 190480), (80, 145241), (122, 95240), (244, 47620), (305, 38096), (488, 23810), (610, 19048), (976, 11905), (1220, 9524), (2381, 4880), (2440, 4762)]