20804948950

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{769}}^1\times {\mathrm{7621}}^1$

素因数の和:8473

約数の個数: 48

約数和(自身を含む): 39298422240

約数和(自身を除く): 18493473290

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 769, 1538, 1775, 3550, 3845, 7621, 7690, 15242, 19225, 38105, 38450, 54599, 76210, 109198, 190525, 272995, 381050, 541091, 545990, 1082182, 1364975, 2705455, 2729950, 5410910, 5860549, 11721098, 13527275, 27054550, 29302745, 58605490, 146513725, 293027450, 416098979, 832197958, 2080494895, 4160989790, 10402474475, 20804948950]

約数ペア:

[(1, 20804948950), (2, 10402474475), (5, 4160989790), (10, 2080494895), (25, 832197958), (50, 416098979), (71, 293027450), (142, 146513725), (355, 58605490), (710, 29302745), (769, 27054550), (1538, 13527275), (1775, 11721098), (3550, 5860549), (3845, 5410910), (7621, 2729950), (7690, 2705455), (15242, 1364975), (19225, 1082182), (38105, 545990), (38450, 541091), (54599, 381050), (76210, 272995), (109198, 190525)]