28166875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:289

約数の個数: 40

約数和(自身を含む): 40824432

約数和(自身を除く): 12657557

約数列:

[1, 5, 11, 17, 25, 55, 85, 125, 187, 241, 275, 425, 625, 935, 1205, 1375, 2125, 2651, 4097, 4675, 6025, 6875, 10625, 13255, 20485, 23375, 30125, 45067, 66275, 102425, 116875, 150625, 225335, 331375, 512125, 1126675, 1656875, 2560625, 5633375, 28166875]

約数ペア:

[(1, 28166875), (5, 5633375), (11, 2560625), (17, 1656875), (25, 1126675), (55, 512125), (85, 331375), (125, 225335), (187, 150625), (241, 116875), (275, 102425), (425, 66275), (625, 45067), (935, 30125), (1205, 23375), (1375, 20485), (2125, 13255), (2651, 10625), (4097, 6875), (4675, 6025)]