18222860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 39880512

約数和(自身を除く): 21657652

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 164, 205, 284, 313, 355, 410, 626, 710, 820, 1252, 1420, 1565, 2911, 3130, 5822, 6260, 11644, 12833, 14555, 22223, 25666, 29110, 44446, 51332, 58220, 64165, 88892, 111115, 128330, 222230, 256660, 444460, 911143, 1822286, 3644572, 4555715, 9111430, 18222860]

約数ペア:

[(1, 18222860), (2, 9111430), (4, 4555715), (5, 3644572), (10, 1822286), (20, 911143), (41, 444460), (71, 256660), (82, 222230), (142, 128330), (164, 111115), (205, 88892), (284, 64165), (313, 58220), (355, 51332), (410, 44446), (626, 29110), (710, 25666), (820, 22223), (1252, 14555), (1420, 12833), (1565, 11644), (2911, 6260), (3130, 5822)]