80458760

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 189000000

約数和(自身を除く): 108541240

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 139, 145, 232, 278, 290, 499, 556, 580, 695, 998, 1112, 1160, 1390, 1996, 2495, 2780, 3992, 4031, 4990, 5560, 8062, 9980, 14471, 16124, 19960, 20155, 28942, 32248, 40310, 57884, 69361, 72355, 80620, 115768, 138722, 144710, 161240, 277444, 289420, 346805, 554888, 578840, 693610, 1387220, 2011469, 2774440, 4022938, 8045876, 10057345, 16091752, 20114690, 40229380, 80458760]

約数ペア:

[(1, 80458760), (2, 40229380), (4, 20114690), (5, 16091752), (8, 10057345), (10, 8045876), (20, 4022938), (29, 2774440), (40, 2011469), (58, 1387220), (116, 693610), (139, 578840), (145, 554888), (232, 346805), (278, 289420), (290, 277444), (499, 161240), (556, 144710), (580, 138722), (695, 115768), (998, 80620), (1112, 72355), (1160, 69361), (1390, 57884), (1996, 40310), (2495, 32248), (2780, 28942), (3992, 20155), (4031, 19960), (4990, 16124), (5560, 14471), (8062, 9980)]