21281870015

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{2383}}^1$

素因数の和:2592

約数の個数: 64

約数和(自身を含む): 30649466880

約数和(自身を除く): 9367596865

約数列:

[1, 5, 7, 35, 47, 61, 89, 235, 305, 329, 427, 445, 623, 1645, 2135, 2383, 2867, 3115, 4183, 5429, 11915, 14335, 16681, 20069, 20915, 27145, 29281, 38003, 83405, 100345, 112001, 145363, 146405, 190015, 212087, 255163, 560005, 726815, 784007, 1017541, 1060435, 1275815, 1484609, 1786141, 3920035, 5087705, 6832061, 7423045, 8930705, 9968089, 12937307, 34160305, 47824427, 49840445, 64686535, 69776623, 90561149, 239122135, 348883115, 452805745, 608053429, 3040267145, 4256374003, 21281870015]

約数ペア:

[(1, 21281870015), (5, 4256374003), (7, 3040267145), (35, 608053429), (47, 452805745), (61, 348883115), (89, 239122135), (235, 90561149), (305, 69776623), (329, 64686535), (427, 49840445), (445, 47824427), (623, 34160305), (1645, 12937307), (2135, 9968089), (2383, 8930705), (2867, 7423045), (3115, 6832061), (4183, 5087705), (5429, 3920035), (11915, 1786141), (14335, 1484609), (16681, 1275815), (20069, 1060435), (20915, 1017541), (27145, 784007), (29281, 726815), (38003, 560005), (83405, 255163), (100345, 212087), (112001, 190015), (145363, 146405)]