20687360340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{868487}}^1$

素因数の和:868896

約数の個数: 48

約数和(自身を含む): 58070581632

約数和(自身を除く): 37383221292

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 397, 794, 1191, 1588, 1985, 2382, 3970, 4764, 5955, 7940, 11910, 23820, 868487, 1736974, 2605461, 3473948, 4342435, 5210922, 8684870, 10421844, 13027305, 17369740, 26054610, 52109220, 344789339, 689578678, 1034368017, 1379157356, 1723946695, 2068736034, 3447893390, 4137472068, 5171840085, 6895786780, 10343680170, 20687360340]

約数ペア:

[(1, 20687360340), (2, 10343680170), (3, 6895786780), (4, 5171840085), (5, 4137472068), (6, 3447893390), (10, 2068736034), (12, 1723946695), (15, 1379157356), (20, 1034368017), (30, 689578678), (60, 344789339), (397, 52109220), (794, 26054610), (1191, 17369740), (1588, 13027305), (1985, 10421844), (2382, 8684870), (3970, 5210922), (4764, 4342435), (5955, 3473948), (7940, 2605461), (11910, 1736974), (23820, 868487)]