161791020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{99871}}^1$

素因数の和:99892

約数の個数: 60

約数和(自身を含む): 507549504

約数和(自身を除く): 345758484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 99871, 199742, 299613, 399484, 499355, 599226, 898839, 998710, 1198452, 1498065, 1797678, 1997420, 2696517, 2996130, 3595356, 4494195, 5393034, 5992260, 8089551, 8988390, 10786068, 13482585, 16179102, 17976780, 26965170, 32358204, 40447755, 53930340, 80895510, 161791020]

約数ペア:

[(1, 161791020), (2, 80895510), (3, 53930340), (4, 40447755), (5, 32358204), (6, 26965170), (9, 17976780), (10, 16179102), (12, 13482585), (15, 10786068), (18, 8988390), (20, 8089551), (27, 5992260), (30, 5393034), (36, 4494195), (45, 3595356), (54, 2996130), (60, 2696517), (81, 1997420), (90, 1797678), (108, 1498065), (135, 1198452), (162, 998710), (180, 898839), (270, 599226), (324, 499355), (405, 399484), (540, 299613), (810, 199742), (1620, 99871)]