218908240

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{601}}^1$

素因数の和:800

約数の個数: 80

約数和(自身を含む): 530747280

約数和(自身を除く): 311839040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 157, 232, 290, 314, 464, 580, 601, 628, 785, 1160, 1202, 1256, 1570, 2320, 2404, 2512, 3005, 3140, 4553, 4808, 6010, 6280, 9106, 9616, 12020, 12560, 17429, 18212, 22765, 24040, 34858, 36424, 45530, 48080, 69716, 72848, 87145, 91060, 94357, 139432, 174290, 182120, 188714, 278864, 348580, 364240, 377428, 471785, 697160, 754856, 943570, 1394320, 1509712, 1887140, 2736353, 3774280, 5472706, 7548560, 10945412, 13681765, 21890824, 27363530, 43781648, 54727060, 109454120, 218908240]

約数ペア:

[(1, 218908240), (2, 109454120), (4, 54727060), (5, 43781648), (8, 27363530), (10, 21890824), (16, 13681765), (20, 10945412), (29, 7548560), (40, 5472706), (58, 3774280), (80, 2736353), (116, 1887140), (145, 1509712), (157, 1394320), (232, 943570), (290, 754856), (314, 697160), (464, 471785), (580, 377428), (601, 364240), (628, 348580), (785, 278864), (1160, 188714), (1202, 182120), (1256, 174290), (1570, 139432), (2320, 94357), (2404, 91060), (2512, 87145), (3005, 72848), (3140, 69716), (4553, 48080), (4808, 45530), (6010, 36424), (6280, 34858), (9106, 24040), (9616, 22765), (12020, 18212), (12560, 17429)]