20720210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 45100800

約数和(自身を除く): 24380590

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 59, 70, 118, 145, 173, 203, 290, 295, 346, 406, 413, 590, 826, 865, 1015, 1211, 1711, 1730, 2030, 2065, 2422, 3422, 4130, 5017, 6055, 8555, 10034, 10207, 11977, 12110, 17110, 20414, 23954, 25085, 35119, 50170, 51035, 59885, 70238, 71449, 102070, 119770, 142898, 175595, 296003, 351190, 357245, 592006, 714490, 1480015, 2072021, 2960030, 4144042, 10360105, 20720210]

約数ペア:

[(1, 20720210), (2, 10360105), (5, 4144042), (7, 2960030), (10, 2072021), (14, 1480015), (29, 714490), (35, 592006), (58, 357245), (59, 351190), (70, 296003), (118, 175595), (145, 142898), (173, 119770), (203, 102070), (290, 71449), (295, 70238), (346, 59885), (406, 51035), (413, 50170), (590, 35119), (826, 25085), (865, 23954), (1015, 20414), (1211, 17110), (1711, 12110), (1730, 11977), (2030, 10207), (2065, 10034), (2422, 8555), (3422, 6055), (4130, 5017)]