2904698020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{105319}}^1$

素因数の和:105532

約数の個数: 48

約数和(自身を含む): 7006728960

約数和(自身を除く): 4102030940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3940, 5516, 6895, 13790, 27580, 105319, 210638, 421276, 526595, 737233, 1053190, 1474466, 2106380, 2948932, 3686165, 7372330, 14744660, 20747843, 41495686, 82991372, 103739215, 145234901, 207478430, 290469802, 414956860, 580939604, 726174505, 1452349010, 2904698020]

約数ペア:

[(1, 2904698020), (2, 1452349010), (4, 726174505), (5, 580939604), (7, 414956860), (10, 290469802), (14, 207478430), (20, 145234901), (28, 103739215), (35, 82991372), (70, 41495686), (140, 20747843), (197, 14744660), (394, 7372330), (788, 3686165), (985, 2948932), (1379, 2106380), (1970, 1474466), (2758, 1053190), (3940, 737233), (5516, 526595), (6895, 421276), (13790, 210638), (27580, 105319)]