120232220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{709}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 258837600

約数和(自身を除く): 138605380

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 139, 244, 278, 305, 556, 610, 695, 709, 1220, 1390, 1418, 2780, 2836, 3545, 7090, 8479, 14180, 16958, 33916, 42395, 43249, 84790, 86498, 98551, 169580, 172996, 197102, 216245, 394204, 432490, 492755, 864980, 985510, 1971020, 6011611, 12023222, 24046444, 30058055, 60116110, 120232220]

約数ペア:

[(1, 120232220), (2, 60116110), (4, 30058055), (5, 24046444), (10, 12023222), (20, 6011611), (61, 1971020), (122, 985510), (139, 864980), (244, 492755), (278, 432490), (305, 394204), (556, 216245), (610, 197102), (695, 172996), (709, 169580), (1220, 98551), (1390, 86498), (1418, 84790), (2780, 43249), (2836, 42395), (3545, 33916), (7090, 16958), (8479, 14180)]