259423190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{64373}}^1$

素因数の和:64424

約数の個数: 32

約数和(自身を含む): 519111936

約数和(自身を除く): 259688746

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 64373, 128746, 321865, 643730, 836849, 1673698, 1995563, 3991126, 4184245, 8368490, 9977815, 19955630, 25942319, 51884638, 129711595, 259423190]

約数ペア:

[(1, 259423190), (2, 129711595), (5, 51884638), (10, 25942319), (13, 19955630), (26, 9977815), (31, 8368490), (62, 4184245), (65, 3991126), (130, 1995563), (155, 1673698), (310, 836849), (403, 643730), (806, 321865), (2015, 128746), (4030, 64373)]