1812091120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{4451}}^1$

素因数の和:5198

約数の個数: 80

約数和(自身を含む): 4822691328

約数和(自身を除く): 3010600208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 727, 1454, 2908, 3635, 4451, 5089, 5816, 7270, 8902, 10178, 11632, 14540, 17804, 20356, 22255, 25445, 29080, 31157, 35608, 40712, 44510, 50890, 58160, 62314, 71216, 81424, 89020, 101780, 124628, 155785, 178040, 203560, 249256, 311570, 356080, 407120, 498512, 623140, 1246280, 2492560, 3235877, 6471754, 12943508, 16179385, 22651139, 25887016, 32358770, 45302278, 51774032, 64717540, 90604556, 113255695, 129435080, 181209112, 226511390, 258870160, 362418224, 453022780, 906045560, 1812091120]

約数ペア:

[(1, 1812091120), (2, 906045560), (4, 453022780), (5, 362418224), (7, 258870160), (8, 226511390), (10, 181209112), (14, 129435080), (16, 113255695), (20, 90604556), (28, 64717540), (35, 51774032), (40, 45302278), (56, 32358770), (70, 25887016), (80, 22651139), (112, 16179385), (140, 12943508), (280, 6471754), (560, 3235877), (727, 2492560), (1454, 1246280), (2908, 623140), (3635, 498512), (4451, 407120), (5089, 356080), (5816, 311570), (7270, 249256), (8902, 203560), (10178, 178040), (11632, 155785), (14540, 124628), (17804, 101780), (20356, 89020), (22255, 81424), (25445, 71216), (29080, 62314), (31157, 58160), (35608, 50890), (40712, 44510)]