72012400

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{4391}}^1$

素因数の和:4450

約数の個数: 60

約数和(自身を含む): 177269904

約数和(自身を除く): 105257504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1640, 2050, 3280, 4100, 4391, 8200, 8782, 16400, 17564, 21955, 35128, 43910, 70256, 87820, 109775, 175640, 180031, 219550, 351280, 360062, 439100, 720124, 878200, 900155, 1440248, 1756400, 1800310, 2880496, 3600620, 4500775, 7201240, 9001550, 14402480, 18003100, 36006200, 72012400]

約数ペア:

[(1, 72012400), (2, 36006200), (4, 18003100), (5, 14402480), (8, 9001550), (10, 7201240), (16, 4500775), (20, 3600620), (25, 2880496), (40, 1800310), (41, 1756400), (50, 1440248), (80, 900155), (82, 878200), (100, 720124), (164, 439100), (200, 360062), (205, 351280), (328, 219550), (400, 180031), (410, 175640), (656, 109775), (820, 87820), (1025, 70256), (1640, 43910), (2050, 35128), (3280, 21955), (4100, 17564), (4391, 16400), (8200, 8782)]