121489225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1999}}^1$

素因数の和:2050

約数の個数: 48

約数和(自身を含む): 187488000

約数和(自身を除く): 65998775

約数列:

[1, 5, 11, 13, 17, 25, 55, 65, 85, 143, 187, 221, 275, 325, 425, 715, 935, 1105, 1999, 2431, 3575, 4675, 5525, 9995, 12155, 21989, 25987, 33983, 49975, 60775, 109945, 129935, 169915, 285857, 373813, 441779, 549725, 649675, 849575, 1429285, 1869065, 2208895, 4859569, 7146425, 9345325, 11044475, 24297845, 121489225]

約数ペア:

[(1, 121489225), (5, 24297845), (11, 11044475), (13, 9345325), (17, 7146425), (25, 4859569), (55, 2208895), (65, 1869065), (85, 1429285), (143, 849575), (187, 649675), (221, 549725), (275, 441779), (325, 373813), (425, 285857), (715, 169915), (935, 129935), (1105, 109945), (1999, 60775), (2431, 49975), (3575, 33983), (4675, 25987), (5525, 21989), (9995, 12155)]