72940900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{16963}}^1$

素因数の和:17020

約数の個数: 36

約数和(自身を含む): 161972272

約数和(自身を除く): 89031372

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 16963, 33926, 67852, 84815, 169630, 339260, 424075, 729409, 848150, 1458818, 1696300, 2917636, 3647045, 7294090, 14588180, 18235225, 36470450, 72940900]

約数ペア:

[(1, 72940900), (2, 36470450), (4, 18235225), (5, 14588180), (10, 7294090), (20, 3647045), (25, 2917636), (43, 1696300), (50, 1458818), (86, 848150), (100, 729409), (172, 424075), (215, 339260), (430, 169630), (860, 84815), (1075, 67852), (2150, 33926), (4300, 16963)]