20070525

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 34872768

約数和(自身を除く): 14802243

約数列:

[1, 3, 5, 15, 25, 41, 61, 75, 107, 123, 183, 205, 305, 321, 535, 615, 915, 1025, 1525, 1605, 2501, 2675, 3075, 4387, 4575, 6527, 7503, 8025, 12505, 13161, 19581, 21935, 32635, 37515, 62525, 65805, 97905, 109675, 163175, 187575, 267607, 329025, 489525, 802821, 1338035, 4014105, 6690175, 20070525]

約数ペア:

[(1, 20070525), (3, 6690175), (5, 4014105), (15, 1338035), (25, 802821), (41, 489525), (61, 329025), (75, 267607), (107, 187575), (123, 163175), (183, 109675), (205, 97905), (305, 65805), (321, 62525), (535, 37515), (615, 32635), (915, 21935), (1025, 19581), (1525, 13161), (1605, 12505), (2501, 8025), (2675, 7503), (3075, 6527), (4387, 4575)]