31360280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2383}}^1$

素因数の和:2448

約数の個数: 64

約数和(自身を含む): 82391040

約数和(自身を除く): 51030760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1645, 1880, 2383, 2632, 3290, 4766, 6580, 9532, 11915, 13160, 16681, 19064, 23830, 33362, 47660, 66724, 83405, 95320, 112001, 133448, 166810, 224002, 333620, 448004, 560005, 667240, 784007, 896008, 1120010, 1568014, 2240020, 3136028, 3920035, 4480040, 6272056, 7840070, 15680140, 31360280]

約数ペア:

[(1, 31360280), (2, 15680140), (4, 7840070), (5, 6272056), (7, 4480040), (8, 3920035), (10, 3136028), (14, 2240020), (20, 1568014), (28, 1120010), (35, 896008), (40, 784007), (47, 667240), (56, 560005), (70, 448004), (94, 333620), (140, 224002), (188, 166810), (235, 133448), (280, 112001), (329, 95320), (376, 83405), (470, 66724), (658, 47660), (940, 33362), (1316, 23830), (1645, 19064), (1880, 16681), (2383, 13160), (2632, 11915), (3290, 9532), (4766, 6580)]