81516080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53629}}^1$

素因数の和:53661

約数の個数: 40

約数和(自身を含む): 199503600

約数和(自身を除く): 117987520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 53629, 107258, 214516, 268145, 429032, 536290, 858064, 1018951, 1072580, 2037902, 2145160, 4075804, 4290320, 5094755, 8151608, 10189510, 16303216, 20379020, 40758040, 81516080]

約数ペア:

[(1, 81516080), (2, 40758040), (4, 20379020), (5, 16303216), (8, 10189510), (10, 8151608), (16, 5094755), (19, 4290320), (20, 4075804), (38, 2145160), (40, 2037902), (76, 1072580), (80, 1018951), (95, 858064), (152, 536290), (190, 429032), (304, 268145), (380, 214516), (760, 107258), (1520, 53629)]