39935840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:400

約数の個数: 96

約数和(自身を含む): 108972864

約数和(自身を除く): 69037024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 181, 197, 224, 280, 362, 394, 560, 724, 788, 905, 985, 1120, 1267, 1379, 1448, 1576, 1810, 1970, 2534, 2758, 2896, 3152, 3620, 3940, 5068, 5516, 5792, 6304, 6335, 6895, 7240, 7880, 10136, 11032, 12670, 13790, 14480, 15760, 20272, 22064, 25340, 27580, 28960, 31520, 35657, 40544, 44128, 50680, 55160, 71314, 101360, 110320, 142628, 178285, 202720, 220640, 249599, 285256, 356570, 499198, 570512, 713140, 998396, 1141024, 1247995, 1426280, 1996792, 2495990, 2852560, 3993584, 4991980, 5705120, 7987168, 9983960, 19967920, 39935840]

約数ペア:

[(1, 39935840), (2, 19967920), (4, 9983960), (5, 7987168), (7, 5705120), (8, 4991980), (10, 3993584), (14, 2852560), (16, 2495990), (20, 1996792), (28, 1426280), (32, 1247995), (35, 1141024), (40, 998396), (56, 713140), (70, 570512), (80, 499198), (112, 356570), (140, 285256), (160, 249599), (181, 220640), (197, 202720), (224, 178285), (280, 142628), (362, 110320), (394, 101360), (560, 71314), (724, 55160), (788, 50680), (905, 44128), (985, 40544), (1120, 35657), (1267, 31520), (1379, 28960), (1448, 27580), (1576, 25340), (1810, 22064), (1970, 20272), (2534, 15760), (2758, 14480), (2896, 13790), (3152, 12670), (3620, 11032), (3940, 10136), (5068, 7880), (5516, 7240), (5792, 6895), (6304, 6335)]