205402015

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{4219}}^1$

素因数の和:4351

約数の個数: 32

約数和(自身を含む): 306270720

約数和(自身を除く): 100868705

約数列:

[1, 5, 7, 13, 35, 65, 91, 107, 455, 535, 749, 1391, 3745, 4219, 6955, 9737, 21095, 29533, 48685, 54847, 147665, 274235, 383929, 451433, 1919645, 2257165, 3160031, 5868629, 15800155, 29343145, 41080403, 205402015]

約数ペア:

[(1, 205402015), (5, 41080403), (7, 29343145), (13, 15800155), (35, 5868629), (65, 3160031), (91, 2257165), (107, 1919645), (455, 451433), (535, 383929), (749, 274235), (1391, 147665), (3745, 54847), (4219, 48685), (6955, 29533), (9737, 21095)]