1639120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2927}}^1$

素因数の和:2947

約数の個数: 40

約数和(自身を含む): 4356864

約数和(自身を除く): 2717744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2927, 5854, 11708, 14635, 20489, 23416, 29270, 40978, 46832, 58540, 81956, 102445, 117080, 163912, 204890, 234160, 327824, 409780, 819560, 1639120]

約数ペア:

[(1, 1639120), (2, 819560), (4, 409780), (5, 327824), (7, 234160), (8, 204890), (10, 163912), (14, 117080), (16, 102445), (20, 81956), (28, 58540), (35, 46832), (40, 40978), (56, 29270), (70, 23416), (80, 20489), (112, 14635), (140, 11708), (280, 5854), (560, 2927)]