28456725

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2029}}^1$

素因数の和:2070

約数の個数: 48

約数和(自身を含む): 54371520

約数和(自身を除く): 25914795

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 51, 55, 75, 85, 165, 187, 255, 275, 425, 561, 825, 935, 1275, 2029, 2805, 4675, 6087, 10145, 14025, 22319, 30435, 34493, 50725, 66957, 103479, 111595, 152175, 172465, 334785, 379423, 517395, 557975, 862325, 1138269, 1673925, 1897115, 2586975, 5691345, 9485575, 28456725]

約数ペア:

[(1, 28456725), (3, 9485575), (5, 5691345), (11, 2586975), (15, 1897115), (17, 1673925), (25, 1138269), (33, 862325), (51, 557975), (55, 517395), (75, 379423), (85, 334785), (165, 172465), (187, 152175), (255, 111595), (275, 103479), (425, 66957), (561, 50725), (825, 34493), (935, 30435), (1275, 22319), (2029, 14025), (2805, 10145), (4675, 6087)]