28402000

素因数分解:

$2^4\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1291}}^1$

素因数の和:1325

約数の個数: 80

約数和(自身を含む): 74977344

約数和(自身を除く): 46575344

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 125, 176, 200, 220, 250, 275, 400, 440, 500, 550, 880, 1000, 1100, 1291, 1375, 2000, 2200, 2582, 2750, 4400, 5164, 5500, 6455, 10328, 11000, 12910, 14201, 20656, 22000, 25820, 28402, 32275, 51640, 56804, 64550, 71005, 103280, 113608, 129100, 142010, 161375, 227216, 258200, 284020, 322750, 355025, 516400, 568040, 645500, 710050, 1136080, 1291000, 1420100, 1775125, 2582000, 2840200, 3550250, 5680400, 7100500, 14201000, 28402000]

約数ペア:

[(1, 28402000), (2, 14201000), (4, 7100500), (5, 5680400), (8, 3550250), (10, 2840200), (11, 2582000), (16, 1775125), (20, 1420100), (22, 1291000), (25, 1136080), (40, 710050), (44, 645500), (50, 568040), (55, 516400), (80, 355025), (88, 322750), (100, 284020), (110, 258200), (125, 227216), (176, 161375), (200, 142010), (220, 129100), (250, 113608), (275, 103280), (400, 71005), (440, 64550), (500, 56804), (550, 51640), (880, 32275), (1000, 28402), (1100, 25820), (1291, 22000), (1375, 20656), (2000, 14201), (2200, 12910), (2582, 11000), (2750, 10328), (4400, 6455), (5164, 5500)]