40408720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{977}}^1$

素因数の和:1048

約数の個数: 80

約数和(自身を含む): 104779008

約数和(自身を除く): 64370288

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 440, 470, 517, 752, 880, 940, 977, 1034, 1880, 1954, 2068, 2585, 3760, 3908, 4136, 4885, 5170, 7816, 8272, 9770, 10340, 10747, 15632, 19540, 20680, 21494, 39080, 41360, 42988, 45919, 53735, 78160, 85976, 91838, 107470, 171952, 183676, 214940, 229595, 367352, 429880, 459190, 505109, 734704, 859760, 918380, 1010218, 1836760, 2020436, 2525545, 3673520, 4040872, 5051090, 8081744, 10102180, 20204360, 40408720]

約数ペア:

[(1, 40408720), (2, 20204360), (4, 10102180), (5, 8081744), (8, 5051090), (10, 4040872), (11, 3673520), (16, 2525545), (20, 2020436), (22, 1836760), (40, 1010218), (44, 918380), (47, 859760), (55, 734704), (80, 505109), (88, 459190), (94, 429880), (110, 367352), (176, 229595), (188, 214940), (220, 183676), (235, 171952), (376, 107470), (440, 91838), (470, 85976), (517, 78160), (752, 53735), (880, 45919), (940, 42988), (977, 41360), (1034, 39080), (1880, 21494), (1954, 20680), (2068, 19540), (2585, 15632), (3760, 10747), (3908, 10340), (4136, 9770), (4885, 8272), (5170, 7816)]