31377640

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{2287}}^1$

素因数の和:2319

約数の個数: 64

約数和(自身を含む): 82368000

約数和(自身を除く): 50990360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2287, 2744, 3430, 4574, 6860, 9148, 11435, 13720, 16009, 18296, 22870, 32018, 45740, 64036, 80045, 91480, 112063, 128072, 160090, 224126, 320180, 448252, 560315, 640360, 784441, 896504, 1120630, 1568882, 2241260, 3137764, 3922205, 4482520, 6275528, 7844410, 15688820, 31377640]

約数ペア:

[(1, 31377640), (2, 15688820), (4, 7844410), (5, 6275528), (7, 4482520), (8, 3922205), (10, 3137764), (14, 2241260), (20, 1568882), (28, 1120630), (35, 896504), (40, 784441), (49, 640360), (56, 560315), (70, 448252), (98, 320180), (140, 224126), (196, 160090), (245, 128072), (280, 112063), (343, 91480), (392, 80045), (490, 64036), (686, 45740), (980, 32018), (1372, 22870), (1715, 18296), (1960, 16009), (2287, 13720), (2744, 11435), (3430, 9148), (4574, 6860)]