18435440

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2917}}^1$

素因数の和:3009

約数の個数: 40

約数和(自身を含む): 43419840

約数和(自身を除く): 24984400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2917, 3160, 5834, 6320, 11668, 14585, 23336, 29170, 46672, 58340, 116680, 230443, 233360, 460886, 921772, 1152215, 1843544, 2304430, 3687088, 4608860, 9217720, 18435440]

約数ペア:

[(1, 18435440), (2, 9217720), (4, 4608860), (5, 3687088), (8, 2304430), (10, 1843544), (16, 1152215), (20, 921772), (40, 460886), (79, 233360), (80, 230443), (158, 116680), (316, 58340), (395, 46672), (632, 29170), (790, 23336), (1264, 14585), (1580, 11668), (2917, 6320), (3160, 5834)]