4321850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 8879640

約数和(自身を除く): 4557790

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 61, 65, 109, 122, 130, 218, 305, 325, 545, 610, 650, 793, 1090, 1417, 1525, 1586, 2725, 2834, 3050, 3965, 5450, 6649, 7085, 7930, 13298, 14170, 19825, 33245, 35425, 39650, 66490, 70850, 86437, 166225, 172874, 332450, 432185, 864370, 2160925, 4321850]

約数ペア:

[(1, 4321850), (2, 2160925), (5, 864370), (10, 432185), (13, 332450), (25, 172874), (26, 166225), (50, 86437), (61, 70850), (65, 66490), (109, 39650), (122, 35425), (130, 33245), (218, 19825), (305, 14170), (325, 13298), (545, 7930), (610, 7085), (650, 6649), (793, 5450), (1090, 3965), (1417, 3050), (1525, 2834), (1586, 2725)]