20789535

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 36892800

約数和(自身を除く): 16103265

約数列:

[1, 3, 5, 13, 15, 39, 59, 65, 139, 169, 177, 195, 295, 417, 507, 695, 767, 845, 885, 1807, 2085, 2301, 2535, 3835, 5421, 8201, 9035, 9971, 11505, 23491, 24603, 27105, 29913, 41005, 49855, 70473, 106613, 117455, 123015, 149565, 319839, 352365, 533065, 1385969, 1599195, 4157907, 6929845, 20789535]

約数ペア:

[(1, 20789535), (3, 6929845), (5, 4157907), (13, 1599195), (15, 1385969), (39, 533065), (59, 352365), (65, 319839), (139, 149565), (169, 123015), (177, 117455), (195, 106613), (295, 70473), (417, 49855), (507, 41005), (695, 29913), (767, 27105), (845, 24603), (885, 23491), (1807, 11505), (2085, 9971), (2301, 9035), (2535, 8201), (3835, 5421)]