2689220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 5987520

約数和(自身を除く): 3298300

約数列:

[1, 2, 4, 5, 10, 20, 43, 53, 59, 86, 106, 118, 172, 212, 215, 236, 265, 295, 430, 530, 590, 860, 1060, 1180, 2279, 2537, 3127, 4558, 5074, 6254, 9116, 10148, 11395, 12508, 12685, 15635, 22790, 25370, 31270, 45580, 50740, 62540, 134461, 268922, 537844, 672305, 1344610, 2689220]

約数ペア:

[(1, 2689220), (2, 1344610), (4, 672305), (5, 537844), (10, 268922), (20, 134461), (43, 62540), (53, 50740), (59, 45580), (86, 31270), (106, 25370), (118, 22790), (172, 15635), (212, 12685), (215, 12508), (236, 11395), (265, 10148), (295, 9116), (430, 6254), (530, 5074), (590, 4558), (860, 3127), (1060, 2537), (1180, 2279)]