20387610315

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{720283}}^1$

素因数の和:720348

約数の個数: 48

約数和(自身を含む): 38428591968

約数和(自身を除く): 18040981653

約数列:

[1, 3, 5, 9, 15, 17, 37, 45, 51, 85, 111, 153, 185, 255, 333, 555, 629, 765, 1665, 1887, 3145, 5661, 9435, 28305, 720283, 2160849, 3601415, 6482547, 10804245, 12244811, 26650471, 32412735, 36734433, 61224055, 79951413, 110203299, 133252355, 183672165, 239854239, 399757065, 453058007, 551016495, 1199271195, 1359174021, 2265290035, 4077522063, 6795870105, 20387610315]

約数ペア:

[(1, 20387610315), (3, 6795870105), (5, 4077522063), (9, 2265290035), (15, 1359174021), (17, 1199271195), (37, 551016495), (45, 453058007), (51, 399757065), (85, 239854239), (111, 183672165), (153, 133252355), (185, 110203299), (255, 79951413), (333, 61224055), (555, 36734433), (629, 32412735), (765, 26650471), (1665, 12244811), (1887, 10804245), (3145, 6482547), (5661, 3601415), (9435, 2160849), (28305, 720283)]