31622440

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4013}}^1$

素因数の和:4221

約数の個数: 32

約数和(自身を含む): 71529480

約数和(自身を除く): 39907040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 4013, 7880, 8026, 16052, 20065, 32104, 40130, 80260, 160520, 790561, 1581122, 3162244, 3952805, 6324488, 7905610, 15811220, 31622440]

約数ペア:

[(1, 31622440), (2, 15811220), (4, 7905610), (5, 6324488), (8, 3952805), (10, 3162244), (20, 1581122), (40, 790561), (197, 160520), (394, 80260), (788, 40130), (985, 32104), (1576, 20065), (1970, 16052), (3940, 8026), (4013, 7880)]