220123075

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 298909440

約数和(自身を除く): 78786365

約数列:

[1, 5, 19, 25, 61, 71, 95, 107, 305, 355, 475, 535, 1159, 1349, 1525, 1775, 2033, 2675, 4331, 5795, 6527, 6745, 7597, 10165, 21655, 28975, 32635, 33725, 37985, 50825, 82289, 108275, 124013, 144343, 163175, 189925, 411445, 463417, 620065, 721715, 2057225, 2317085, 3100325, 3608575, 8804923, 11585425, 44024615, 220123075]

約数ペア:

[(1, 220123075), (5, 44024615), (19, 11585425), (25, 8804923), (61, 3608575), (71, 3100325), (95, 2317085), (107, 2057225), (305, 721715), (355, 620065), (475, 463417), (535, 411445), (1159, 189925), (1349, 163175), (1525, 144343), (1775, 124013), (2033, 108275), (2675, 82289), (4331, 50825), (5795, 37985), (6527, 33725), (6745, 32635), (7597, 28975), (10165, 21655)]