28764575

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 44163840

約数和(自身を除く): 15399265

約数列:

[1, 5, 7, 19, 25, 35, 41, 95, 133, 175, 205, 211, 287, 475, 665, 779, 1025, 1055, 1435, 1477, 3325, 3895, 4009, 5275, 5453, 7175, 7385, 8651, 19475, 20045, 27265, 28063, 36925, 43255, 60557, 100225, 136325, 140315, 164369, 216275, 302785, 701575, 821845, 1150583, 1513925, 4109225, 5752915, 28764575]

約数ペア:

[(1, 28764575), (5, 5752915), (7, 4109225), (19, 1513925), (25, 1150583), (35, 821845), (41, 701575), (95, 302785), (133, 216275), (175, 164369), (205, 140315), (211, 136325), (287, 100225), (475, 60557), (665, 43255), (779, 36925), (1025, 28063), (1055, 27265), (1435, 20045), (1477, 19475), (3325, 8651), (3895, 7385), (4009, 7175), (5275, 5453)]