28479825

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{311}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 57335616

約数和(自身を除く): 28855791

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 37, 45, 55, 75, 99, 111, 165, 185, 225, 275, 311, 333, 407, 495, 555, 825, 925, 933, 1221, 1555, 1665, 2035, 2475, 2775, 2799, 3421, 3663, 4665, 6105, 7775, 8325, 10175, 10263, 11507, 13995, 17105, 18315, 23325, 30525, 30789, 34521, 51315, 57535, 69975, 85525, 91575, 103563, 126577, 153945, 172605, 256575, 287675, 379731, 517815, 632885, 769725, 863025, 1139193, 1898655, 2589075, 3164425, 5695965, 9493275, 28479825]

約数ペア:

[(1, 28479825), (3, 9493275), (5, 5695965), (9, 3164425), (11, 2589075), (15, 1898655), (25, 1139193), (33, 863025), (37, 769725), (45, 632885), (55, 517815), (75, 379731), (99, 287675), (111, 256575), (165, 172605), (185, 153945), (225, 126577), (275, 103563), (311, 91575), (333, 85525), (407, 69975), (495, 57535), (555, 51315), (825, 34521), (925, 30789), (933, 30525), (1221, 23325), (1555, 18315), (1665, 17105), (2035, 13995), (2475, 11507), (2775, 10263), (2799, 10175), (3421, 8325), (3663, 7775), (4665, 6105)]