206156665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 306561024

約数和(自身を除く): 100404359

約数列:

[1, 5, 11, 13, 31, 55, 65, 71, 131, 143, 155, 341, 355, 403, 655, 715, 781, 923, 1441, 1703, 1705, 2015, 2201, 3905, 4061, 4433, 4615, 7205, 8515, 9301, 10153, 11005, 18733, 20305, 22165, 24211, 28613, 44671, 46505, 50765, 52793, 93665, 102311, 120913, 121055, 143065, 223355, 263965, 288331, 314743, 511555, 580723, 604565, 1330043, 1441655, 1573715, 2903615, 3171641, 3748303, 6650215, 15858205, 18741515, 41231333, 206156665]

約数ペア:

[(1, 206156665), (5, 41231333), (11, 18741515), (13, 15858205), (31, 6650215), (55, 3748303), (65, 3171641), (71, 2903615), (131, 1573715), (143, 1441655), (155, 1330043), (341, 604565), (355, 580723), (403, 511555), (655, 314743), (715, 288331), (781, 263965), (923, 223355), (1441, 143065), (1703, 121055), (1705, 120913), (2015, 102311), (2201, 93665), (3905, 52793), (4061, 50765), (4433, 46505), (4615, 44671), (7205, 28613), (8515, 24211), (9301, 22165), (10153, 20305), (11005, 18733)]