87137540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{971}}^1$

素因数の和:1628

約数の個数: 48

約数和(自身を含む): 209672064

約数和(自身を除く): 122534524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 641, 971, 1282, 1942, 2564, 3205, 3884, 4487, 4855, 6410, 6797, 8974, 9710, 12820, 13594, 17948, 19420, 22435, 27188, 33985, 44870, 67970, 89740, 135940, 622411, 1244822, 2489644, 3112055, 4356877, 6224110, 8713754, 12448220, 17427508, 21784385, 43568770, 87137540]

約数ペア:

[(1, 87137540), (2, 43568770), (4, 21784385), (5, 17427508), (7, 12448220), (10, 8713754), (14, 6224110), (20, 4356877), (28, 3112055), (35, 2489644), (70, 1244822), (140, 622411), (641, 135940), (971, 89740), (1282, 67970), (1942, 44870), (2564, 33985), (3205, 27188), (3884, 22435), (4487, 19420), (4855, 17948), (6410, 13594), (6797, 12820), (8974, 9710)]