78901340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{2671}}^1$

素因数の和:2898

約数の個数: 48

約数和(自身を含む): 190331904

約数和(自身を除く): 111430564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2671, 2954, 4220, 5342, 5908, 7385, 10684, 13355, 14770, 18697, 26710, 29540, 37394, 53420, 74788, 93485, 186970, 373940, 563581, 1127162, 2254324, 2817905, 3945067, 5635810, 7890134, 11271620, 15780268, 19725335, 39450670, 78901340]

約数ペア:

[(1, 78901340), (2, 39450670), (4, 19725335), (5, 15780268), (7, 11271620), (10, 7890134), (14, 5635810), (20, 3945067), (28, 2817905), (35, 2254324), (70, 1127162), (140, 563581), (211, 373940), (422, 186970), (844, 93485), (1055, 74788), (1477, 53420), (2110, 37394), (2671, 29540), (2954, 26710), (4220, 18697), (5342, 14770), (5908, 13355), (7385, 10684)]