31621340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{443}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 68923008

約数和(自身を除く): 37301668

約数列:

[1, 2, 4, 5, 10, 20, 43, 83, 86, 166, 172, 215, 332, 415, 430, 443, 830, 860, 886, 1660, 1772, 2215, 3569, 4430, 7138, 8860, 14276, 17845, 19049, 35690, 36769, 38098, 71380, 73538, 76196, 95245, 147076, 183845, 190490, 367690, 380980, 735380, 1581067, 3162134, 6324268, 7905335, 15810670, 31621340]

約数ペア:

[(1, 31621340), (2, 15810670), (4, 7905335), (5, 6324268), (10, 3162134), (20, 1581067), (43, 735380), (83, 380980), (86, 367690), (166, 190490), (172, 183845), (215, 147076), (332, 95245), (415, 76196), (430, 73538), (443, 71380), (830, 38098), (860, 36769), (886, 35690), (1660, 19049), (1772, 17845), (2215, 14276), (3569, 8860), (4430, 7138)]