2019181255

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:656

約数の個数: 64

約数和(自身を含む): 3049095168

約数和(自身を除く): 1029913913

約数列:

[1, 5, 7, 13, 35, 65, 83, 91, 127, 415, 421, 455, 581, 635, 889, 1079, 1651, 2105, 2905, 2947, 4445, 5395, 5473, 7553, 8255, 10541, 11557, 14735, 27365, 34943, 37765, 38311, 52705, 53467, 57785, 73787, 137033, 174715, 191555, 244601, 267335, 368935, 374269, 454259, 685165, 695071, 959231, 1223005, 1871345, 2271295, 3179813, 3475355, 4437761, 4796155, 4865497, 15899065, 22188805, 24327485, 31064327, 57690893, 155321635, 288454465, 403836251, 2019181255]

約数ペア:

[(1, 2019181255), (5, 403836251), (7, 288454465), (13, 155321635), (35, 57690893), (65, 31064327), (83, 24327485), (91, 22188805), (127, 15899065), (415, 4865497), (421, 4796155), (455, 4437761), (581, 3475355), (635, 3179813), (889, 2271295), (1079, 1871345), (1651, 1223005), (2105, 959231), (2905, 695071), (2947, 685165), (4445, 454259), (5395, 374269), (5473, 368935), (7553, 267335), (8255, 244601), (10541, 191555), (11557, 174715), (14735, 137033), (27365, 73787), (34943, 57785), (37765, 53467), (38311, 52705)]