1911926960

素因数分解:

$2^4\times 5^1\times {\mathrm{997}}^1\times {\mathrm{23971}}^1$

素因数の和:24981

約数の個数: 40

約数和(自身を含む): 4449874416

約数和(自身を除く): 2537947456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 997, 1994, 3988, 4985, 7976, 9970, 15952, 19940, 23971, 39880, 47942, 79760, 95884, 119855, 191768, 239710, 383536, 479420, 958840, 1917680, 23899087, 47798174, 95596348, 119495435, 191192696, 238990870, 382385392, 477981740, 955963480, 1911926960]

約数ペア:

[(1, 1911926960), (2, 955963480), (4, 477981740), (5, 382385392), (8, 238990870), (10, 191192696), (16, 119495435), (20, 95596348), (40, 47798174), (80, 23899087), (997, 1917680), (1994, 958840), (3988, 479420), (4985, 383536), (7976, 239710), (9970, 191768), (15952, 119855), (19940, 95884), (23971, 79760), (39880, 47942)]