1286952520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{20071}}^1$

素因数の和:20318

約数の個数: 64

約数和(自身を含む): 3323923200

約数和(自身を除く): 2036970680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 458, 916, 1145, 1603, 1832, 2290, 3206, 4580, 6412, 8015, 9160, 12824, 16030, 20071, 32060, 40142, 64120, 80284, 100355, 140497, 160568, 200710, 280994, 401420, 561988, 702485, 802840, 1123976, 1404970, 2809940, 4596259, 5619880, 9192518, 18385036, 22981295, 32173813, 36770072, 45962590, 64347626, 91925180, 128695252, 160869065, 183850360, 257390504, 321738130, 643476260, 1286952520]

約数ペア:

[(1, 1286952520), (2, 643476260), (4, 321738130), (5, 257390504), (7, 183850360), (8, 160869065), (10, 128695252), (14, 91925180), (20, 64347626), (28, 45962590), (35, 36770072), (40, 32173813), (56, 22981295), (70, 18385036), (140, 9192518), (229, 5619880), (280, 4596259), (458, 2809940), (916, 1404970), (1145, 1123976), (1603, 802840), (1832, 702485), (2290, 561988), (3206, 401420), (4580, 280994), (6412, 200710), (8015, 160568), (9160, 140497), (12824, 100355), (16030, 80284), (20071, 64120), (32060, 40142)]