621518975

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{16993}}^1$

素因数の和:17040

約数の個数: 48

約数和(自身を含む): 1011482880

約数和(自身を除く): 389963905

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 77, 95, 133, 175, 209, 275, 385, 475, 665, 1045, 1463, 1925, 3325, 5225, 7315, 16993, 36575, 84965, 118951, 186923, 322867, 424825, 594755, 934615, 1308461, 1614335, 2260069, 2973775, 3551537, 4673075, 6542305, 8071675, 11300345, 17757685, 24860759, 32711525, 56501725, 88788425, 124303795, 621518975]

約数ペア:

[(1, 621518975), (5, 124303795), (7, 88788425), (11, 56501725), (19, 32711525), (25, 24860759), (35, 17757685), (55, 11300345), (77, 8071675), (95, 6542305), (133, 4673075), (175, 3551537), (209, 2973775), (275, 2260069), (385, 1614335), (475, 1308461), (665, 934615), (1045, 594755), (1463, 424825), (1925, 322867), (3325, 186923), (5225, 118951), (7315, 84965), (16993, 36575)]