17875780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 40748400

約数和(自身を除く): 22872620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 349, 394, 698, 788, 985, 1396, 1745, 1970, 2561, 3490, 3940, 4537, 5122, 6980, 9074, 10244, 12805, 18148, 22685, 25610, 45370, 51220, 68753, 90740, 137506, 275012, 343765, 687530, 893789, 1375060, 1787578, 3575156, 4468945, 8937890, 17875780]

約数ペア:

[(1, 17875780), (2, 8937890), (4, 4468945), (5, 3575156), (10, 1787578), (13, 1375060), (20, 893789), (26, 687530), (52, 343765), (65, 275012), (130, 137506), (197, 90740), (260, 68753), (349, 51220), (394, 45370), (698, 25610), (788, 22685), (985, 18148), (1396, 12805), (1745, 10244), (1970, 9074), (2561, 6980), (3490, 5122), (3940, 4537)]