839968991240

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2473}}^1\times {\mathrm{61981}}^1$

素因数の和:64602

約数の個数: 64

約数和(自身を含む): 1904525872560

約数和(自身を除く): 1064556881320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2473, 2740, 4946, 5480, 9892, 12365, 19784, 24730, 49460, 61981, 98920, 123962, 247924, 309905, 338801, 495848, 619810, 677602, 1239620, 1355204, 1694005, 2479240, 2710408, 3388010, 6776020, 8491397, 13552040, 16982794, 33965588, 42456985, 67931176, 84913970, 153279013, 169827940, 306558026, 339655880, 613116052, 766395065, 1226232104, 1532790130, 3065580260, 6131160520, 20999224781, 41998449562, 83996899124, 104996123905, 167993798248, 209992247810, 419984495620, 839968991240]

約数ペア:

[(1, 839968991240), (2, 419984495620), (4, 209992247810), (5, 167993798248), (8, 104996123905), (10, 83996899124), (20, 41998449562), (40, 20999224781), (137, 6131160520), (274, 3065580260), (548, 1532790130), (685, 1226232104), (1096, 766395065), (1370, 613116052), (2473, 339655880), (2740, 306558026), (4946, 169827940), (5480, 153279013), (9892, 84913970), (12365, 67931176), (19784, 42456985), (24730, 33965588), (49460, 16982794), (61981, 13552040), (98920, 8491397), (123962, 6776020), (247924, 3388010), (309905, 2710408), (338801, 2479240), (495848, 1694005), (619810, 1355204), (677602, 1239620)]