19942140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 58927680

約数和(自身を除く): 38985540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 73, 87, 116, 145, 146, 157, 174, 219, 290, 292, 314, 348, 365, 435, 438, 471, 580, 628, 730, 785, 870, 876, 942, 1095, 1460, 1570, 1740, 1884, 2117, 2190, 2355, 3140, 4234, 4380, 4553, 4710, 6351, 8468, 9106, 9420, 10585, 11461, 12702, 13659, 18212, 21170, 22765, 22922, 25404, 27318, 31755, 34383, 42340, 45530, 45844, 54636, 57305, 63510, 68295, 68766, 91060, 114610, 127020, 136590, 137532, 171915, 229220, 273180, 332369, 343830, 664738, 687660, 997107, 1329476, 1661845, 1994214, 3323690, 3988428, 4985535, 6647380, 9971070, 19942140]

約数ペア:

[(1, 19942140), (2, 9971070), (3, 6647380), (4, 4985535), (5, 3988428), (6, 3323690), (10, 1994214), (12, 1661845), (15, 1329476), (20, 997107), (29, 687660), (30, 664738), (58, 343830), (60, 332369), (73, 273180), (87, 229220), (116, 171915), (145, 137532), (146, 136590), (157, 127020), (174, 114610), (219, 91060), (290, 68766), (292, 68295), (314, 63510), (348, 57305), (365, 54636), (435, 45844), (438, 45530), (471, 42340), (580, 34383), (628, 31755), (730, 27318), (785, 25404), (870, 22922), (876, 22765), (942, 21170), (1095, 18212), (1460, 13659), (1570, 12702), (1740, 11461), (1884, 10585), (2117, 9420), (2190, 9106), (2355, 8468), (3140, 6351), (4234, 4710), (4380, 4553)]