18784790

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:173

約数の個数: 48

約数和(自身を含む): 36551088

約数和(自身を除く): 17766298

約数列:

[1, 2, 5, 10, 23, 46, 53, 67, 106, 115, 134, 230, 265, 335, 529, 530, 670, 1058, 1219, 1541, 2438, 2645, 3082, 3551, 5290, 6095, 7102, 7705, 12190, 15410, 17755, 28037, 35443, 35510, 56074, 70886, 81673, 140185, 163346, 177215, 280370, 354430, 408365, 816730, 1878479, 3756958, 9392395, 18784790]

約数ペア:

[(1, 18784790), (2, 9392395), (5, 3756958), (10, 1878479), (23, 816730), (46, 408365), (53, 354430), (67, 280370), (106, 177215), (115, 163346), (134, 140185), (230, 81673), (265, 70886), (335, 56074), (529, 35510), (530, 35443), (670, 28037), (1058, 17755), (1219, 15410), (1541, 12190), (2438, 7705), (2645, 7102), (3082, 6095), (3551, 5290)]