398334540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{25243}}^1$

素因数の和:25518

約数の個数: 48

約数和(自身を含む): 1119621888

約数和(自身を除く): 721287348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 263, 526, 789, 1052, 1315, 1578, 2630, 3156, 3945, 5260, 7890, 15780, 25243, 50486, 75729, 100972, 126215, 151458, 252430, 302916, 378645, 504860, 757290, 1514580, 6638909, 13277818, 19916727, 26555636, 33194545, 39833454, 66389090, 79666908, 99583635, 132778180, 199167270, 398334540]

約数ペア:

[(1, 398334540), (2, 199167270), (3, 132778180), (4, 99583635), (5, 79666908), (6, 66389090), (10, 39833454), (12, 33194545), (15, 26555636), (20, 19916727), (30, 13277818), (60, 6638909), (263, 1514580), (526, 757290), (789, 504860), (1052, 378645), (1315, 302916), (1578, 252430), (2630, 151458), (3156, 126215), (3945, 100972), (5260, 75729), (7890, 50486), (15780, 25243)]