20495341725

素因数分解:

$3^1\times 5^2\times {\mathrm{313}}^1\times {\mathrm{881}}^1\times {\mathrm{991}}^1$

素因数の和:2198

約数の個数: 48

約数和(自身を含む): 34066819584

約数和(自身を除く): 13571477859

約数列:

[1, 3, 5, 15, 25, 75, 313, 881, 939, 991, 1565, 2643, 2973, 4405, 4695, 4955, 7825, 13215, 14865, 22025, 23475, 24775, 66075, 74325, 275753, 310183, 827259, 873071, 930549, 1378765, 1550915, 2619213, 4136295, 4365355, 4652745, 6893825, 7754575, 13096065, 20681475, 21826775, 23263725, 65480325, 273271223, 819813669, 1366356115, 4099068345, 6831780575, 20495341725]

約数ペア:

[(1, 20495341725), (3, 6831780575), (5, 4099068345), (15, 1366356115), (25, 819813669), (75, 273271223), (313, 65480325), (881, 23263725), (939, 21826775), (991, 20681475), (1565, 13096065), (2643, 7754575), (2973, 6893825), (4405, 4652745), (4695, 4365355), (4955, 4136295), (7825, 2619213), (13215, 1550915), (14865, 1378765), (22025, 930549), (23475, 873071), (24775, 827259), (66075, 310183), (74325, 275753)]