19746680

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{587}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 46093320

約数和(自身を除く): 26346640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 587, 841, 1160, 1174, 1682, 2348, 2935, 3364, 4205, 4696, 5870, 6728, 8410, 11740, 16820, 17023, 23480, 33640, 34046, 68092, 85115, 136184, 170230, 340460, 493667, 680920, 987334, 1974668, 2468335, 3949336, 4936670, 9873340, 19746680]

約数ペア:

[(1, 19746680), (2, 9873340), (4, 4936670), (5, 3949336), (8, 2468335), (10, 1974668), (20, 987334), (29, 680920), (40, 493667), (58, 340460), (116, 170230), (145, 136184), (232, 85115), (290, 68092), (580, 34046), (587, 33640), (841, 23480), (1160, 17023), (1174, 16820), (1682, 11740), (2348, 8410), (2935, 6728), (3364, 5870), (4205, 4696)]