218795440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{160879}}^1$

素因数の和:160909

約数の個数: 40

約数和(自身を含む): 538626240

約数和(自身を除く): 319830800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 160879, 321758, 643516, 804395, 1287032, 1608790, 2574064, 2734943, 3217580, 5469886, 6435160, 10939772, 12870320, 13674715, 21879544, 27349430, 43759088, 54698860, 109397720, 218795440]

約数ペア:

[(1, 218795440), (2, 109397720), (4, 54698860), (5, 43759088), (8, 27349430), (10, 21879544), (16, 13674715), (17, 12870320), (20, 10939772), (34, 6435160), (40, 5469886), (68, 3217580), (80, 2734943), (85, 2574064), (136, 1608790), (170, 1287032), (272, 804395), (340, 643516), (680, 321758), (1360, 160879)]