20178984525

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{630101}}^1$

素因数の和:630182

約数の個数: 48

約数和(自身を含む): 38753793408

約数和(自身を除く): 18574808883

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 61, 75, 105, 175, 183, 305, 427, 525, 915, 1281, 1525, 2135, 4575, 6405, 10675, 32025, 630101, 1890303, 3150505, 4410707, 9451515, 13232121, 15752525, 22053535, 38436161, 47257575, 66160605, 110267675, 115308483, 192180805, 269053127, 330803025, 576542415, 807159381, 960904025, 1345265635, 2882712075, 4035796905, 6726328175, 20178984525]

約数ペア:

[(1, 20178984525), (3, 6726328175), (5, 4035796905), (7, 2882712075), (15, 1345265635), (21, 960904025), (25, 807159381), (35, 576542415), (61, 330803025), (75, 269053127), (105, 192180805), (175, 115308483), (183, 110267675), (305, 66160605), (427, 47257575), (525, 38436161), (915, 22053535), (1281, 15752525), (1525, 13232121), (2135, 9451515), (4575, 4410707), (6405, 3150505), (10675, 1890303), (32025, 630101)]