40840720

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8369}}^1$

素因数の和:8443

約数の個数: 40

約数和(自身を含む): 96522840

約数和(自身を除く): 55682120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 8369, 16738, 33476, 41845, 66952, 83690, 133904, 167380, 334760, 510509, 669520, 1021018, 2042036, 2552545, 4084072, 5105090, 8168144, 10210180, 20420360, 40840720]

約数ペア:

[(1, 40840720), (2, 20420360), (4, 10210180), (5, 8168144), (8, 5105090), (10, 4084072), (16, 2552545), (20, 2042036), (40, 1021018), (61, 669520), (80, 510509), (122, 334760), (244, 167380), (305, 133904), (488, 83690), (610, 66952), (976, 41845), (1220, 33476), (2440, 16738), (4880, 8369)]