72760400

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1801}}^1$

素因数の和:1920

約数の個数: 60

約数和(自身を含む): 176635644

約数和(自身を除く): 103875244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 505, 808, 1010, 1616, 1801, 2020, 2525, 3602, 4040, 5050, 7204, 8080, 9005, 10100, 14408, 18010, 20200, 28816, 36020, 40400, 45025, 72040, 90050, 144080, 180100, 181901, 360200, 363802, 720400, 727604, 909505, 1455208, 1819010, 2910416, 3638020, 4547525, 7276040, 9095050, 14552080, 18190100, 36380200, 72760400]

約数ペア:

[(1, 72760400), (2, 36380200), (4, 18190100), (5, 14552080), (8, 9095050), (10, 7276040), (16, 4547525), (20, 3638020), (25, 2910416), (40, 1819010), (50, 1455208), (80, 909505), (100, 727604), (101, 720400), (200, 363802), (202, 360200), (400, 181901), (404, 180100), (505, 144080), (808, 90050), (1010, 72040), (1616, 45025), (1801, 40400), (2020, 36020), (2525, 28816), (3602, 20200), (4040, 18010), (5050, 14408), (7204, 10100), (8080, 9005)]