28446275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 42393120

約数和(自身を除く): 13946845

約数列:

[1, 5, 11, 13, 25, 55, 65, 73, 109, 143, 275, 325, 365, 545, 715, 803, 949, 1199, 1417, 1825, 2725, 3575, 4015, 4745, 5995, 7085, 7957, 10439, 15587, 20075, 23725, 29975, 35425, 39785, 52195, 77935, 87527, 103441, 198925, 260975, 389675, 437635, 517205, 1137851, 2188175, 2586025, 5689255, 28446275]

約数ペア:

[(1, 28446275), (5, 5689255), (11, 2586025), (13, 2188175), (25, 1137851), (55, 517205), (65, 437635), (73, 389675), (109, 260975), (143, 198925), (275, 103441), (325, 87527), (365, 77935), (545, 52195), (715, 39785), (803, 35425), (949, 29975), (1199, 23725), (1417, 20075), (1825, 15587), (2725, 10439), (3575, 7957), (4015, 7085), (4745, 5995)]