31988860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 70652736

約数和(自身を除く): 38663876

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 197, 230, 353, 394, 460, 706, 788, 985, 1412, 1765, 1970, 3530, 3940, 4531, 7060, 8119, 9062, 16238, 18124, 22655, 32476, 40595, 45310, 69541, 81190, 90620, 139082, 162380, 278164, 347705, 695410, 1390820, 1599443, 3198886, 6397772, 7997215, 15994430, 31988860]

約数ペア:

[(1, 31988860), (2, 15994430), (4, 7997215), (5, 6397772), (10, 3198886), (20, 1599443), (23, 1390820), (46, 695410), (92, 347705), (115, 278164), (197, 162380), (230, 139082), (353, 90620), (394, 81190), (460, 69541), (706, 45310), (788, 40595), (985, 32476), (1412, 22655), (1765, 18124), (1970, 16238), (3530, 9062), (3940, 8119), (4531, 7060)]