1900145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:113

約数の個数: 32

約数和(自身を含む): 2709504

約数和(自身を除く): 809359

約数列:

[1, 5, 13, 23, 31, 41, 65, 115, 155, 205, 299, 403, 533, 713, 943, 1271, 1495, 2015, 2665, 3565, 4715, 6355, 9269, 12259, 16523, 29233, 46345, 61295, 82615, 146165, 380029, 1900145]

約数ペア:

[(1, 1900145), (5, 380029), (13, 146165), (23, 82615), (31, 61295), (41, 46345), (65, 29233), (115, 16523), (155, 12259), (205, 9269), (299, 6355), (403, 4715), (533, 3565), (713, 2665), (943, 2015), (1271, 1495)]