28318675

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 44854272

約数和(自身を除く): 16535597

約数列:

[1, 5, 7, 11, 25, 35, 47, 55, 77, 175, 235, 275, 313, 329, 385, 517, 1175, 1565, 1645, 1925, 2191, 2585, 3443, 3619, 7825, 8225, 10955, 12925, 14711, 17215, 18095, 24101, 54775, 73555, 86075, 90475, 102977, 120505, 161821, 367775, 514885, 602525, 809105, 1132747, 2574425, 4045525, 5663735, 28318675]

約数ペア:

[(1, 28318675), (5, 5663735), (7, 4045525), (11, 2574425), (25, 1132747), (35, 809105), (47, 602525), (55, 514885), (77, 367775), (175, 161821), (235, 120505), (275, 102977), (313, 90475), (329, 86075), (385, 73555), (517, 54775), (1175, 24101), (1565, 18095), (1645, 17215), (1925, 14711), (2191, 12925), (2585, 10955), (3443, 8225), (3619, 7825)]