308720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:257

約数の個数: 40

約数和(自身を含む): 763344

約数和(自身を除く): 454624

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 227, 272, 340, 454, 680, 908, 1135, 1360, 1816, 2270, 3632, 3859, 4540, 7718, 9080, 15436, 18160, 19295, 30872, 38590, 61744, 77180, 154360, 308720]

約数ペア:

[(1, 308720), (2, 154360), (4, 77180), (5, 61744), (8, 38590), (10, 30872), (16, 19295), (17, 18160), (20, 15436), (34, 9080), (40, 7718), (68, 4540), (80, 3859), (85, 3632), (136, 2270), (170, 1816), (227, 1360), (272, 1135), (340, 908), (454, 680)]