28702388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{139}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 62727840

約数和(自身を除く): 34025452

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 139, 143, 209, 247, 278, 286, 361, 418, 494, 556, 572, 722, 836, 988, 1444, 1529, 1807, 2641, 2717, 3058, 3614, 3971, 4693, 5282, 5434, 6116, 7228, 7942, 9386, 10564, 10868, 15884, 18772, 19877, 29051, 34333, 39754, 50179, 51623, 58102, 68666, 79508, 100358, 103246, 116204, 137332, 200716, 206492, 377663, 551969, 652327, 755326, 1103938, 1304654, 1510652, 2207876, 2609308, 7175597, 14351194, 28702388]

約数ペア:

[(1, 28702388), (2, 14351194), (4, 7175597), (11, 2609308), (13, 2207876), (19, 1510652), (22, 1304654), (26, 1103938), (38, 755326), (44, 652327), (52, 551969), (76, 377663), (139, 206492), (143, 200716), (209, 137332), (247, 116204), (278, 103246), (286, 100358), (361, 79508), (418, 68666), (494, 58102), (556, 51623), (572, 50179), (722, 39754), (836, 34333), (988, 29051), (1444, 19877), (1529, 18772), (1807, 15884), (2641, 10868), (2717, 10564), (3058, 9386), (3614, 7942), (3971, 7228), (4693, 6116), (5282, 5434)]