20512576016

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{924323}}^1$

素因数の和:924423

約数の個数: 40

約数和(自身を含む): 42407985120

約数和(自身を除く): 21895409104

約数列:

[1, 2, 4, 8, 16, 19, 38, 73, 76, 146, 152, 292, 304, 584, 1168, 1387, 2774, 5548, 11096, 22192, 924323, 1848646, 3697292, 7394584, 14789168, 17562137, 35124274, 67475579, 70248548, 134951158, 140497096, 269902316, 280994192, 539804632, 1079609264, 1282036001, 2564072002, 5128144004, 10256288008, 20512576016]

約数ペア:

[(1, 20512576016), (2, 10256288008), (4, 5128144004), (8, 2564072002), (16, 1282036001), (19, 1079609264), (38, 539804632), (73, 280994192), (76, 269902316), (146, 140497096), (152, 134951158), (292, 70248548), (304, 67475579), (584, 35124274), (1168, 17562137), (1387, 14789168), (2774, 7394584), (5548, 3697292), (11096, 1848646), (22192, 924323)]