20913210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10103}}^1$

素因数の和:10139

約数の個数: 48

約数和(自身を含む): 56744064

約数和(自身を除く): 35830854

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 10103, 20206, 30309, 50515, 60618, 90927, 101030, 151545, 181854, 232369, 303090, 454635, 464738, 697107, 909270, 1161845, 1394214, 2091321, 2323690, 3485535, 4182642, 6971070, 10456605, 20913210]

約数ペア:

[(1, 20913210), (2, 10456605), (3, 6971070), (5, 4182642), (6, 3485535), (9, 2323690), (10, 2091321), (15, 1394214), (18, 1161845), (23, 909270), (30, 697107), (45, 464738), (46, 454635), (69, 303090), (90, 232369), (115, 181854), (138, 151545), (207, 101030), (230, 90927), (345, 60618), (414, 50515), (690, 30309), (1035, 20206), (2070, 10103)]