20095215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 39315456

約数和(自身を除く): 19220241

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 53, 69, 105, 115, 157, 159, 161, 265, 345, 371, 471, 483, 785, 795, 805, 1099, 1113, 1219, 1855, 2355, 2415, 3297, 3611, 3657, 5495, 5565, 6095, 8321, 8533, 10833, 16485, 18055, 18285, 24963, 25277, 25599, 41605, 42665, 54165, 58247, 75831, 124815, 126385, 127995, 174741, 191383, 291235, 379155, 574149, 873705, 956915, 1339681, 2870745, 4019043, 6698405, 20095215]

約数ペア:

[(1, 20095215), (3, 6698405), (5, 4019043), (7, 2870745), (15, 1339681), (21, 956915), (23, 873705), (35, 574149), (53, 379155), (69, 291235), (105, 191383), (115, 174741), (157, 127995), (159, 126385), (161, 124815), (265, 75831), (345, 58247), (371, 54165), (471, 42665), (483, 41605), (785, 25599), (795, 25277), (805, 24963), (1099, 18285), (1113, 18055), (1219, 16485), (1855, 10833), (2355, 8533), (2415, 8321), (3297, 6095), (3611, 5565), (3657, 5495)]