1880324360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{27799}}^1$

素因数の和:27918

約数の個数: 64

約数和(自身を含む): 4503600000

約数和(自身を除く): 2623275640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 445, 712, 760, 890, 1691, 1780, 3382, 3560, 6764, 8455, 13528, 16910, 27799, 33820, 55598, 67640, 111196, 138995, 222392, 277990, 528181, 555980, 1056362, 1111960, 2112724, 2474111, 2640905, 4225448, 4948222, 5281810, 9896444, 10563620, 12370555, 19792888, 21127240, 24741110, 47008109, 49482220, 94016218, 98964440, 188032436, 235040545, 376064872, 470081090, 940162180, 1880324360]

約数ペア:

[(1, 1880324360), (2, 940162180), (4, 470081090), (5, 376064872), (8, 235040545), (10, 188032436), (19, 98964440), (20, 94016218), (38, 49482220), (40, 47008109), (76, 24741110), (89, 21127240), (95, 19792888), (152, 12370555), (178, 10563620), (190, 9896444), (356, 5281810), (380, 4948222), (445, 4225448), (712, 2640905), (760, 2474111), (890, 2112724), (1691, 1111960), (1780, 1056362), (3382, 555980), (3560, 528181), (6764, 277990), (8455, 222392), (13528, 138995), (16910, 111196), (27799, 67640), (33820, 55598)]