18056780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1277}}^1$

素因数の和:1394

約数の個数: 48

約数和(自身を含む): 43799616

約数和(自身を除く): 25742836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1277, 1414, 2020, 2554, 2828, 3535, 5108, 6385, 7070, 8939, 12770, 14140, 17878, 25540, 35756, 44695, 89390, 128977, 178780, 257954, 515908, 644885, 902839, 1289770, 1805678, 2579540, 3611356, 4514195, 9028390, 18056780]

約数ペア:

[(1, 18056780), (2, 9028390), (4, 4514195), (5, 3611356), (7, 2579540), (10, 1805678), (14, 1289770), (20, 902839), (28, 644885), (35, 515908), (70, 257954), (101, 178780), (140, 128977), (202, 89390), (404, 44695), (505, 35756), (707, 25540), (1010, 17878), (1277, 14140), (1414, 12770), (2020, 8939), (2554, 7070), (2828, 6385), (3535, 5108)]