12891457760

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{905299}}^1$

素因数の和:905403

約数の個数: 48

約数和(自身を含む): 30798306000

約数和(自身を除く): 17906848240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 7120, 14240, 905299, 1810598, 3621196, 4526495, 7242392, 9052990, 14484784, 18105980, 28969568, 36211960, 72423920, 80571611, 144847840, 161143222, 322286444, 402858055, 644572888, 805716110, 1289145776, 1611432220, 2578291552, 3222864440, 6445728880, 12891457760]

約数ペア:

[(1, 12891457760), (2, 6445728880), (4, 3222864440), (5, 2578291552), (8, 1611432220), (10, 1289145776), (16, 805716110), (20, 644572888), (32, 402858055), (40, 322286444), (80, 161143222), (89, 144847840), (160, 80571611), (178, 72423920), (356, 36211960), (445, 28969568), (712, 18105980), (890, 14484784), (1424, 9052990), (1780, 7242392), (2848, 4526495), (3560, 3621196), (7120, 1810598), (14240, 905299)]