39042520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{997}}^1$

素因数の和:1108

約数の個数: 64

約数和(自身を含む): 97005600

約数和(自身を除く): 57963080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 356, 440, 445, 712, 890, 979, 997, 1780, 1958, 1994, 3560, 3916, 3988, 4895, 4985, 7832, 7976, 9790, 9970, 10967, 19580, 19940, 21934, 39160, 39880, 43868, 54835, 87736, 88733, 109670, 177466, 219340, 354932, 438680, 443665, 709864, 887330, 976063, 1774660, 1952126, 3549320, 3904252, 4880315, 7808504, 9760630, 19521260, 39042520]

約数ペア:

[(1, 39042520), (2, 19521260), (4, 9760630), (5, 7808504), (8, 4880315), (10, 3904252), (11, 3549320), (20, 1952126), (22, 1774660), (40, 976063), (44, 887330), (55, 709864), (88, 443665), (89, 438680), (110, 354932), (178, 219340), (220, 177466), (356, 109670), (440, 88733), (445, 87736), (712, 54835), (890, 43868), (979, 39880), (997, 39160), (1780, 21934), (1958, 19940), (1994, 19580), (3560, 10967), (3916, 9970), (3988, 9790), (4895, 7976), (4985, 7832)]