20715405872

素因数分解:

$2^4\times 7^1\times {\mathrm{347}}^1\times {\mathrm{433}}^1\times {\mathrm{1231}}^1$

素因数の和:2026

約数の個数: 80

約数和(自身を含む): 46145713152

約数和(自身を除く): 25430307280

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 347, 433, 694, 866, 1231, 1388, 1732, 2429, 2462, 2776, 3031, 3464, 4858, 4924, 5552, 6062, 6928, 8617, 9716, 9848, 12124, 17234, 19432, 19696, 24248, 34468, 38864, 48496, 68936, 137872, 150251, 300502, 427157, 533023, 601004, 854314, 1051757, 1066046, 1202008, 1708628, 2103514, 2132092, 2404016, 2990099, 3417256, 3731161, 4207028, 4264184, 5980198, 6834512, 7462322, 8414056, 8528368, 11960396, 14924644, 16828112, 23920792, 29849288, 47841584, 59698576, 184958981, 369917962, 739835924, 1294712867, 1479671848, 2589425734, 2959343696, 5178851468, 10357702936, 20715405872]

約数ペア:

[(1, 20715405872), (2, 10357702936), (4, 5178851468), (7, 2959343696), (8, 2589425734), (14, 1479671848), (16, 1294712867), (28, 739835924), (56, 369917962), (112, 184958981), (347, 59698576), (433, 47841584), (694, 29849288), (866, 23920792), (1231, 16828112), (1388, 14924644), (1732, 11960396), (2429, 8528368), (2462, 8414056), (2776, 7462322), (3031, 6834512), (3464, 5980198), (4858, 4264184), (4924, 4207028), (5552, 3731161), (6062, 3417256), (6928, 2990099), (8617, 2404016), (9716, 2132092), (9848, 2103514), (12124, 1708628), (17234, 1202008), (19432, 1066046), (19696, 1051757), (24248, 854314), (34468, 601004), (38864, 533023), (48496, 427157), (68936, 300502), (137872, 150251)]