123725980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{661}}^1$

素因数の和:875

約数の個数: 72

約数和(自身を含む): 304286976

約数和(自身を除く): 180560996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 191, 196, 245, 382, 490, 661, 764, 955, 980, 1322, 1337, 1910, 2644, 2674, 3305, 3820, 4627, 5348, 6610, 6685, 9254, 9359, 13220, 13370, 18508, 18718, 23135, 26740, 32389, 37436, 46270, 46795, 64778, 92540, 93590, 126251, 129556, 161945, 187180, 252502, 323890, 505004, 631255, 647780, 883757, 1262510, 1767514, 2525020, 3535028, 4418785, 6186299, 8837570, 12372598, 17675140, 24745196, 30931495, 61862990, 123725980]

約数ペア:

[(1, 123725980), (2, 61862990), (4, 30931495), (5, 24745196), (7, 17675140), (10, 12372598), (14, 8837570), (20, 6186299), (28, 4418785), (35, 3535028), (49, 2525020), (70, 1767514), (98, 1262510), (140, 883757), (191, 647780), (196, 631255), (245, 505004), (382, 323890), (490, 252502), (661, 187180), (764, 161945), (955, 129556), (980, 126251), (1322, 93590), (1337, 92540), (1910, 64778), (2644, 46795), (2674, 46270), (3305, 37436), (3820, 32389), (4627, 26740), (5348, 23135), (6610, 18718), (6685, 18508), (9254, 13370), (9359, 13220)]