78170225

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 116718720

約数和(自身を除く): 38548495

約数列:

[1, 5, 7, 25, 29, 35, 73, 145, 175, 203, 211, 365, 511, 725, 1015, 1055, 1477, 1825, 2117, 2555, 5075, 5275, 6119, 7385, 10585, 12775, 14819, 15403, 30595, 36925, 42833, 52925, 74095, 77015, 107821, 152975, 214165, 370475, 385075, 446687, 539105, 1070825, 2233435, 2695525, 3126809, 11167175, 15634045, 78170225]

約数ペア:

[(1, 78170225), (5, 15634045), (7, 11167175), (25, 3126809), (29, 2695525), (35, 2233435), (73, 1070825), (145, 539105), (175, 446687), (203, 385075), (211, 370475), (365, 214165), (511, 152975), (725, 107821), (1015, 77015), (1055, 74095), (1477, 52925), (1825, 42833), (2117, 36925), (2555, 30595), (5075, 15403), (5275, 14819), (6119, 12775), (7385, 10585)]