81554070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2647}}^1$

素因数の和:2749

約数の個数: 64

約数和(自身を含む): 213534720

約数和(自身を除く): 131980650

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 79, 130, 158, 195, 237, 390, 395, 474, 790, 1027, 1185, 2054, 2370, 2647, 3081, 5135, 5294, 6162, 7941, 10270, 13235, 15405, 15882, 26470, 30810, 34411, 39705, 68822, 79410, 103233, 172055, 206466, 209113, 344110, 418226, 516165, 627339, 1032330, 1045565, 1254678, 2091130, 2718469, 3136695, 5436938, 6273390, 8155407, 13592345, 16310814, 27184690, 40777035, 81554070]

約数ペア:

[(1, 81554070), (2, 40777035), (3, 27184690), (5, 16310814), (6, 13592345), (10, 8155407), (13, 6273390), (15, 5436938), (26, 3136695), (30, 2718469), (39, 2091130), (65, 1254678), (78, 1045565), (79, 1032330), (130, 627339), (158, 516165), (195, 418226), (237, 344110), (390, 209113), (395, 206466), (474, 172055), (790, 103233), (1027, 79410), (1185, 68822), (2054, 39705), (2370, 34411), (2647, 30810), (3081, 26470), (5135, 15882), (5294, 15405), (6162, 13235), (7941, 10270)]