72209680

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2557}}^1$

素因数の和:2923

約数の個数: 40

約数和(自身を含む): 168428952

約数和(自身を除く): 96219272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 1412, 1765, 2557, 2824, 3530, 5114, 5648, 7060, 10228, 12785, 14120, 20456, 25570, 28240, 40912, 51140, 102280, 204560, 902621, 1805242, 3610484, 4513105, 7220968, 9026210, 14441936, 18052420, 36104840, 72209680]

約数ペア:

[(1, 72209680), (2, 36104840), (4, 18052420), (5, 14441936), (8, 9026210), (10, 7220968), (16, 4513105), (20, 3610484), (40, 1805242), (80, 902621), (353, 204560), (706, 102280), (1412, 51140), (1765, 40912), (2557, 28240), (2824, 25570), (3530, 20456), (5114, 14120), (5648, 12785), (7060, 10228)]