31749580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1249}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 70560000

約数和(自身を除く): 38810420

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1249, 1271, 2498, 2542, 4996, 5084, 6245, 6355, 12490, 12710, 24980, 25420, 38719, 51209, 77438, 102418, 154876, 193595, 204836, 256045, 387190, 512090, 774380, 1024180, 1587479, 3174958, 6349916, 7937395, 15874790, 31749580]

約数ペア:

[(1, 31749580), (2, 15874790), (4, 7937395), (5, 6349916), (10, 3174958), (20, 1587479), (31, 1024180), (41, 774380), (62, 512090), (82, 387190), (124, 256045), (155, 204836), (164, 193595), (205, 154876), (310, 102418), (410, 77438), (620, 51209), (820, 38719), (1249, 25420), (1271, 24980), (2498, 12710), (2542, 12490), (4996, 6355), (5084, 6245)]