213120340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{1607}}^1$

素因数の和:1984

約数の個数: 48

約数和(自身を含む): 472752000

約数和(自身を除く): 259631660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 349, 380, 698, 1396, 1607, 1745, 3214, 3490, 6428, 6631, 6980, 8035, 13262, 16070, 26524, 30533, 32140, 33155, 61066, 66310, 122132, 132620, 152665, 305330, 560843, 610660, 1121686, 2243372, 2804215, 5608430, 10656017, 11216860, 21312034, 42624068, 53280085, 106560170, 213120340]

約数ペア:

[(1, 213120340), (2, 106560170), (4, 53280085), (5, 42624068), (10, 21312034), (19, 11216860), (20, 10656017), (38, 5608430), (76, 2804215), (95, 2243372), (190, 1121686), (349, 610660), (380, 560843), (698, 305330), (1396, 152665), (1607, 132620), (1745, 122132), (3214, 66310), (3490, 61066), (6428, 33155), (6631, 32140), (6980, 30533), (8035, 26524), (13262, 16070)]