80786651200

素因数分解:

$2^6\times 5^2\times {\mathrm{1987}}^1\times {\mathrm{25411}}^1$

素因数の和:27420

約数の個数: 84

約数和(自身を含む): 198893523472

約数和(自身を除く): 118106872272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 1987, 3974, 7948, 9935, 15896, 19870, 25411, 31792, 39740, 49675, 50822, 63584, 79480, 99350, 101644, 127055, 127168, 158960, 198700, 203288, 254110, 317920, 397400, 406576, 508220, 635275, 635840, 794800, 813152, 1016440, 1270550, 1589600, 1626304, 2032880, 2541100, 3179200, 4065760, 5082200, 8131520, 10164400, 20328800, 40657600, 50491657, 100983314, 201966628, 252458285, 403933256, 504916570, 807866512, 1009833140, 1262291425, 1615733024, 2019666280, 2524582850, 3231466048, 4039332560, 5049165700, 8078665120, 10098331400, 16157330240, 20196662800, 40393325600, 80786651200]

約数ペア:

[(1, 80786651200), (2, 40393325600), (4, 20196662800), (5, 16157330240), (8, 10098331400), (10, 8078665120), (16, 5049165700), (20, 4039332560), (25, 3231466048), (32, 2524582850), (40, 2019666280), (50, 1615733024), (64, 1262291425), (80, 1009833140), (100, 807866512), (160, 504916570), (200, 403933256), (320, 252458285), (400, 201966628), (800, 100983314), (1600, 50491657), (1987, 40657600), (3974, 20328800), (7948, 10164400), (9935, 8131520), (15896, 5082200), (19870, 4065760), (25411, 3179200), (31792, 2541100), (39740, 2032880), (49675, 1626304), (50822, 1589600), (63584, 1270550), (79480, 1016440), (99350, 813152), (101644, 794800), (127055, 635840), (127168, 635275), (158960, 508220), (198700, 406576), (203288, 397400), (254110, 317920)]