2638090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{223}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 5902848

約数和(自身を除く): 3264758

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 169, 182, 223, 338, 446, 455, 845, 910, 1115, 1183, 1561, 1690, 2230, 2366, 2899, 3122, 5798, 5915, 7805, 11830, 14495, 15610, 20293, 28990, 37687, 40586, 75374, 101465, 188435, 202930, 263809, 376870, 527618, 1319045, 2638090]

約数ペア:

[(1, 2638090), (2, 1319045), (5, 527618), (7, 376870), (10, 263809), (13, 202930), (14, 188435), (26, 101465), (35, 75374), (65, 40586), (70, 37687), (91, 28990), (130, 20293), (169, 15610), (182, 14495), (223, 11830), (338, 7805), (446, 5915), (455, 5798), (845, 3122), (910, 2899), (1115, 2366), (1183, 2230), (1561, 1690)]