72229040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:574

約数の個数: 80

約数和(自身を含む): 182280000

約数和(自身を除く): 110050960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 199, 208, 260, 349, 398, 520, 698, 796, 995, 1040, 1396, 1592, 1745, 1990, 2587, 2792, 3184, 3490, 3980, 4537, 5174, 5584, 6980, 7960, 9074, 10348, 12935, 13960, 15920, 18148, 20696, 22685, 25870, 27920, 36296, 41392, 45370, 51740, 69451, 72592, 90740, 103480, 138902, 181480, 206960, 277804, 347255, 362960, 555608, 694510, 902863, 1111216, 1389020, 1805726, 2778040, 3611452, 4514315, 5556080, 7222904, 9028630, 14445808, 18057260, 36114520, 72229040]

約数ペア:

[(1, 72229040), (2, 36114520), (4, 18057260), (5, 14445808), (8, 9028630), (10, 7222904), (13, 5556080), (16, 4514315), (20, 3611452), (26, 2778040), (40, 1805726), (52, 1389020), (65, 1111216), (80, 902863), (104, 694510), (130, 555608), (199, 362960), (208, 347255), (260, 277804), (349, 206960), (398, 181480), (520, 138902), (698, 103480), (796, 90740), (995, 72592), (1040, 69451), (1396, 51740), (1592, 45370), (1745, 41392), (1990, 36296), (2587, 27920), (2792, 25870), (3184, 22685), (3490, 20696), (3980, 18148), (4537, 15920), (5174, 13960), (5584, 12935), (6980, 10348), (7960, 9074)]