10821640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 26568000

約数和(自身を除く): 15746360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 76, 95, 116, 145, 152, 190, 232, 290, 380, 491, 551, 580, 760, 982, 1102, 1160, 1964, 2204, 2455, 2755, 3928, 4408, 4910, 5510, 9329, 9820, 11020, 14239, 18658, 19640, 22040, 28478, 37316, 46645, 56956, 71195, 74632, 93290, 113912, 142390, 186580, 270541, 284780, 373160, 541082, 569560, 1082164, 1352705, 2164328, 2705410, 5410820, 10821640]

約数ペア:

[(1, 10821640), (2, 5410820), (4, 2705410), (5, 2164328), (8, 1352705), (10, 1082164), (19, 569560), (20, 541082), (29, 373160), (38, 284780), (40, 270541), (58, 186580), (76, 142390), (95, 113912), (116, 93290), (145, 74632), (152, 71195), (190, 56956), (232, 46645), (290, 37316), (380, 28478), (491, 22040), (551, 19640), (580, 18658), (760, 14239), (982, 11020), (1102, 9820), (1160, 9329), (1964, 5510), (2204, 4910), (2455, 4408), (2755, 3928)]