40490660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:625

約数の個数: 72

約数和(自身を含む): 100356480

約数和(自身を除く): 59865820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 523, 553, 790, 980, 1046, 1106, 1580, 2092, 2212, 2615, 2765, 3661, 3871, 5230, 5530, 7322, 7742, 10460, 11060, 14644, 15484, 18305, 19355, 25627, 36610, 38710, 41317, 51254, 73220, 77420, 82634, 102508, 128135, 165268, 206585, 256270, 289219, 413170, 512540, 578438, 826340, 1156876, 1446095, 2024533, 2892190, 4049066, 5784380, 8098132, 10122665, 20245330, 40490660]

約数ペア:

[(1, 40490660), (2, 20245330), (4, 10122665), (5, 8098132), (7, 5784380), (10, 4049066), (14, 2892190), (20, 2024533), (28, 1446095), (35, 1156876), (49, 826340), (70, 578438), (79, 512540), (98, 413170), (140, 289219), (158, 256270), (196, 206585), (245, 165268), (316, 128135), (395, 102508), (490, 82634), (523, 77420), (553, 73220), (790, 51254), (980, 41317), (1046, 38710), (1106, 36610), (1580, 25627), (2092, 19355), (2212, 18305), (2615, 15484), (2765, 14644), (3661, 11060), (3871, 10460), (5230, 7742), (5530, 7322)]