20209605

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1699}}^1$

素因数の和:1781

約数の個数: 32

約数和(自身を含む): 35414400

約数和(自身を除く): 15204795

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 1699, 2379, 3965, 5097, 8495, 11895, 22087, 25485, 66261, 103639, 110435, 310917, 331305, 518195, 1347307, 1554585, 4041921, 6736535, 20209605]

約数ペア:

[(1, 20209605), (3, 6736535), (5, 4041921), (13, 1554585), (15, 1347307), (39, 518195), (61, 331305), (65, 310917), (183, 110435), (195, 103639), (305, 66261), (793, 25485), (915, 22087), (1699, 11895), (2379, 8495), (3965, 5097)]