20169440

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3407}}^1$

素因数の和:3459

約数の個数: 48

約数和(自身を含む): 48952512

約数和(自身を除く): 28783072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3407, 5920, 6814, 13628, 17035, 27256, 34070, 54512, 68140, 109024, 126059, 136280, 252118, 272560, 504236, 545120, 630295, 1008472, 1260590, 2016944, 2521180, 4033888, 5042360, 10084720, 20169440]

約数ペア:

[(1, 20169440), (2, 10084720), (4, 5042360), (5, 4033888), (8, 2521180), (10, 2016944), (16, 1260590), (20, 1008472), (32, 630295), (37, 545120), (40, 504236), (74, 272560), (80, 252118), (148, 136280), (160, 126059), (185, 109024), (296, 68140), (370, 54512), (592, 34070), (740, 27256), (1184, 17035), (1480, 13628), (2960, 6814), (3407, 5920)]