201865105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 266289408

約数和(自身を除く): 64424303

約数列:

[1, 5, 13, 65, 131, 151, 157, 655, 755, 785, 1703, 1963, 2041, 8515, 9815, 10205, 19781, 20567, 23707, 98905, 102835, 118535, 257153, 267371, 308191, 1285765, 1336855, 1540955, 3105617, 15528085, 40373021, 201865105]

約数ペア:

[(1, 201865105), (5, 40373021), (13, 15528085), (65, 3105617), (131, 1540955), (151, 1336855), (157, 1285765), (655, 308191), (755, 267371), (785, 257153), (1703, 118535), (1963, 102835), (2041, 98905), (8515, 23707), (9815, 20567), (10205, 19781)]