321812240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{129763}}^1$

素因数の和:129807

約数の個数: 40

約数和(自身を含む): 772355328

約数和(自身を除く): 450543088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 129763, 259526, 519052, 648815, 1038104, 1297630, 2076208, 2595260, 4022653, 5190520, 8045306, 10381040, 16090612, 20113265, 32181224, 40226530, 64362448, 80453060, 160906120, 321812240]

約数ペア:

[(1, 321812240), (2, 160906120), (4, 80453060), (5, 64362448), (8, 40226530), (10, 32181224), (16, 20113265), (20, 16090612), (31, 10381040), (40, 8045306), (62, 5190520), (80, 4022653), (124, 2595260), (155, 2076208), (248, 1297630), (310, 1038104), (496, 648815), (620, 519052), (1240, 259526), (2480, 129763)]