201820640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{491}}^1$

素因数の和:880

約数の個数: 96

約数和(自身を含む): 547513344

約数和(自身を除く): 345692704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 367, 491, 560, 734, 982, 1120, 1468, 1835, 1964, 2455, 2569, 2936, 3437, 3670, 3928, 4910, 5138, 5872, 6874, 7340, 7856, 9820, 10276, 11744, 12845, 13748, 14680, 15712, 17185, 19640, 20552, 25690, 27496, 29360, 34370, 39280, 41104, 51380, 54992, 58720, 68740, 78560, 82208, 102760, 109984, 137480, 180197, 205520, 274960, 360394, 411040, 549920, 720788, 900985, 1261379, 1441576, 1801970, 2522758, 2883152, 3603940, 5045516, 5766304, 6306895, 7207880, 10091032, 12613790, 14415760, 20182064, 25227580, 28831520, 40364128, 50455160, 100910320, 201820640]

約数ペア:

[(1, 201820640), (2, 100910320), (4, 50455160), (5, 40364128), (7, 28831520), (8, 25227580), (10, 20182064), (14, 14415760), (16, 12613790), (20, 10091032), (28, 7207880), (32, 6306895), (35, 5766304), (40, 5045516), (56, 3603940), (70, 2883152), (80, 2522758), (112, 1801970), (140, 1441576), (160, 1261379), (224, 900985), (280, 720788), (367, 549920), (491, 411040), (560, 360394), (734, 274960), (982, 205520), (1120, 180197), (1468, 137480), (1835, 109984), (1964, 102760), (2455, 82208), (2569, 78560), (2936, 68740), (3437, 58720), (3670, 54992), (3928, 51380), (4910, 41104), (5138, 39280), (5872, 34370), (6874, 29360), (7340, 27496), (7856, 25690), (9820, 20552), (10276, 19640), (11744, 17185), (12845, 15712), (13748, 14680)]