205380357

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 352235520

約数和(自身を除く): 146855163

約数列:

[1, 3, 7, 13, 21, 39, 41, 59, 91, 123, 177, 273, 287, 311, 413, 533, 767, 861, 933, 1239, 1599, 2177, 2301, 2419, 3731, 4043, 5369, 6531, 7257, 11193, 12129, 12751, 16107, 16933, 18349, 28301, 31447, 38253, 50799, 55047, 84903, 89257, 94341, 128443, 165763, 220129, 238537, 267771, 385329, 497289, 660387, 715611, 752309, 1160341, 1669759, 2256927, 3481023, 5009277, 5266163, 9780017, 15798489, 29340051, 68460119, 205380357]

約数ペア:

[(1, 205380357), (3, 68460119), (7, 29340051), (13, 15798489), (21, 9780017), (39, 5266163), (41, 5009277), (59, 3481023), (91, 2256927), (123, 1669759), (177, 1160341), (273, 752309), (287, 715611), (311, 660387), (413, 497289), (533, 385329), (767, 267771), (861, 238537), (933, 220129), (1239, 165763), (1599, 128443), (2177, 94341), (2301, 89257), (2419, 84903), (3731, 55047), (4043, 50799), (5369, 38253), (6531, 31447), (7257, 28301), (11193, 18349), (12129, 16933), (12751, 16107)]