20796611276

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^2\times {\mathrm{79}}^1\times {\mathrm{3347}}^1$

素因数の和:3543

約数の個数: 72

約数和(自身を含む): 42942251520

約数和(自身を除く): 22145640244

約数列:

[1, 2, 4, 7, 14, 28, 53, 79, 106, 158, 212, 316, 371, 553, 742, 1106, 1484, 2212, 2809, 3347, 4187, 5618, 6694, 8374, 11236, 13388, 16748, 19663, 23429, 29309, 39326, 46858, 58618, 78652, 93716, 117236, 177391, 221911, 264413, 354782, 443822, 528826, 709564, 887644, 1057652, 1241737, 1553377, 1850891, 2483474, 3106754, 3701782, 4966948, 6213508, 7403564, 9401723, 14013889, 18803446, 28027778, 37606892, 56055556, 65812061, 98097223, 131624122, 196194446, 263248244, 392388892, 742736117, 1485472234, 2970944468, 5199152819, 10398305638, 20796611276]

約数ペア:

[(1, 20796611276), (2, 10398305638), (4, 5199152819), (7, 2970944468), (14, 1485472234), (28, 742736117), (53, 392388892), (79, 263248244), (106, 196194446), (158, 131624122), (212, 98097223), (316, 65812061), (371, 56055556), (553, 37606892), (742, 28027778), (1106, 18803446), (1484, 14013889), (2212, 9401723), (2809, 7403564), (3347, 6213508), (4187, 4966948), (5618, 3701782), (6694, 3106754), (8374, 2483474), (11236, 1850891), (13388, 1553377), (16748, 1241737), (19663, 1057652), (23429, 887644), (29309, 709564), (39326, 528826), (46858, 443822), (58618, 354782), (78652, 264413), (93716, 221911), (117236, 177391)]