13122160

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 32810400

約数和(自身を除く): 19688240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 89, 95, 97, 152, 178, 190, 194, 304, 356, 380, 388, 445, 485, 712, 760, 776, 890, 970, 1424, 1520, 1552, 1691, 1780, 1843, 1940, 3382, 3560, 3686, 3880, 6764, 7120, 7372, 7760, 8455, 8633, 9215, 13528, 14744, 16910, 17266, 18430, 27056, 29488, 33820, 34532, 36860, 43165, 67640, 69064, 73720, 86330, 135280, 138128, 147440, 164027, 172660, 328054, 345320, 656108, 690640, 820135, 1312216, 1640270, 2624432, 3280540, 6561080, 13122160]

約数ペア:

[(1, 13122160), (2, 6561080), (4, 3280540), (5, 2624432), (8, 1640270), (10, 1312216), (16, 820135), (19, 690640), (20, 656108), (38, 345320), (40, 328054), (76, 172660), (80, 164027), (89, 147440), (95, 138128), (97, 135280), (152, 86330), (178, 73720), (190, 69064), (194, 67640), (304, 43165), (356, 36860), (380, 34532), (388, 33820), (445, 29488), (485, 27056), (712, 18430), (760, 17266), (776, 16910), (890, 14744), (970, 13528), (1424, 9215), (1520, 8633), (1552, 8455), (1691, 7760), (1780, 7372), (1843, 7120), (1940, 6764), (3382, 3880), (3560, 3686)]