28878110

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:209

約数の個数: 48

約数和(自身を含む): 55901664

約数和(自身を除く): 27023554

約数列:

[1, 2, 5, 10, 23, 46, 53, 103, 106, 115, 206, 230, 265, 515, 529, 530, 1030, 1058, 1219, 2369, 2438, 2645, 4738, 5290, 5459, 6095, 10918, 11845, 12190, 23690, 27295, 28037, 54487, 54590, 56074, 108974, 125557, 140185, 251114, 272435, 280370, 544870, 627785, 1255570, 2887811, 5775622, 14439055, 28878110]

約数ペア:

[(1, 28878110), (2, 14439055), (5, 5775622), (10, 2887811), (23, 1255570), (46, 627785), (53, 544870), (103, 280370), (106, 272435), (115, 251114), (206, 140185), (230, 125557), (265, 108974), (515, 56074), (529, 54590), (530, 54487), (1030, 28037), (1058, 27295), (1219, 23690), (2369, 12190), (2438, 11845), (2645, 10918), (4738, 6095), (5290, 5459)]