55728040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81953}}^1$

素因数の和:81981

約数の個数: 32

約数和(自身を含む): 132765480

約数和(自身を除く): 77037440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 81953, 163906, 327812, 409765, 655624, 819530, 1393201, 1639060, 2786402, 3278120, 5572804, 6966005, 11145608, 13932010, 27864020, 55728040]

約数ペア:

[(1, 55728040), (2, 27864020), (4, 13932010), (5, 11145608), (8, 6966005), (10, 5572804), (17, 3278120), (20, 2786402), (34, 1639060), (40, 1393201), (68, 819530), (85, 655624), (136, 409765), (170, 327812), (340, 163906), (680, 81953)]