20756925

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:240

約数の個数: 96

約数和(自身を含む): 45711360

約数和(自身を除く): 24954435

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 25, 27, 35, 45, 63, 69, 75, 105, 115, 135, 161, 175, 189, 191, 207, 225, 315, 345, 483, 525, 573, 575, 621, 675, 805, 945, 955, 1035, 1337, 1449, 1575, 1719, 1725, 2415, 2865, 3105, 4011, 4025, 4347, 4393, 4725, 4775, 5157, 5175, 6685, 7245, 8595, 12033, 12075, 13179, 14325, 15525, 20055, 21735, 21965, 25785, 30751, 33425, 36099, 36225, 39537, 42975, 60165, 65895, 92253, 100275, 108675, 109825, 118611, 128925, 153755, 180495, 197685, 276759, 300825, 329475, 461265, 593055, 768775, 830277, 902475, 988425, 1383795, 2306325, 2965275, 4151385, 6918975, 20756925]

約数ペア:

[(1, 20756925), (3, 6918975), (5, 4151385), (7, 2965275), (9, 2306325), (15, 1383795), (21, 988425), (23, 902475), (25, 830277), (27, 768775), (35, 593055), (45, 461265), (63, 329475), (69, 300825), (75, 276759), (105, 197685), (115, 180495), (135, 153755), (161, 128925), (175, 118611), (189, 109825), (191, 108675), (207, 100275), (225, 92253), (315, 65895), (345, 60165), (483, 42975), (525, 39537), (573, 36225), (575, 36099), (621, 33425), (675, 30751), (805, 25785), (945, 21965), (955, 21735), (1035, 20055), (1337, 15525), (1449, 14325), (1575, 13179), (1719, 12075), (1725, 12033), (2415, 8595), (2865, 7245), (3105, 6685), (4011, 5175), (4025, 5157), (4347, 4775), (4393, 4725)]