878640140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{20443}}^1$

素因数の和:20766

約数の個数: 48

約数和(自身を含む): 2115708672

約数和(自身を除く): 1237068532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 307, 614, 1228, 1535, 2149, 3070, 4298, 6140, 8596, 10745, 20443, 21490, 40886, 42980, 81772, 102215, 143101, 204430, 286202, 408860, 572404, 715505, 1431010, 2862020, 6276001, 12552002, 25104004, 31380005, 43932007, 62760010, 87864014, 125520020, 175728028, 219660035, 439320070, 878640140]

約数ペア:

[(1, 878640140), (2, 439320070), (4, 219660035), (5, 175728028), (7, 125520020), (10, 87864014), (14, 62760010), (20, 43932007), (28, 31380005), (35, 25104004), (70, 12552002), (140, 6276001), (307, 2862020), (614, 1431010), (1228, 715505), (1535, 572404), (2149, 408860), (3070, 286202), (4298, 204430), (6140, 143101), (8596, 102215), (10745, 81772), (20443, 42980), (21490, 40886)]