638860140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{122387}}^1$

素因数の和:122431

約数の個数: 72

約数和(自身を含む): 2004715440

約数和(自身を除く): 1365855300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 122387, 244774, 367161, 489548, 611935, 734322, 1101483, 1223870, 1468644, 1835805, 2202966, 2447740, 3549223, 3671610, 4405932, 5507415, 7098446, 7343220, 10647669, 11014830, 14196892, 17746115, 21295338, 22029660, 31943007, 35492230, 42590676, 53238345, 63886014, 70984460, 106476690, 127772028, 159715035, 212953380, 319430070, 638860140]

約数ペア:

[(1, 638860140), (2, 319430070), (3, 212953380), (4, 159715035), (5, 127772028), (6, 106476690), (9, 70984460), (10, 63886014), (12, 53238345), (15, 42590676), (18, 35492230), (20, 31943007), (29, 22029660), (30, 21295338), (36, 17746115), (45, 14196892), (58, 11014830), (60, 10647669), (87, 7343220), (90, 7098446), (116, 5507415), (145, 4405932), (174, 3671610), (180, 3549223), (261, 2447740), (290, 2202966), (348, 1835805), (435, 1468644), (522, 1223870), (580, 1101483), (870, 734322), (1044, 611935), (1305, 489548), (1740, 367161), (2610, 244774), (5220, 122387)]