78438940

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73999}}^1$

素因数の和:74061

約数の個数: 24

約数和(自身を含む): 167832000

約数和(自身を除く): 89393060

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 73999, 147998, 295996, 369995, 739990, 1479980, 3921947, 7843894, 15687788, 19609735, 39219470, 78438940]

約数ペア:

[(1, 78438940), (2, 39219470), (4, 19609735), (5, 15687788), (10, 7843894), (20, 3921947), (53, 1479980), (106, 739990), (212, 369995), (265, 295996), (530, 147998), (1060, 73999)]