20512995855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{317957}}^1$

素因数の和:318016

約数の個数: 64

約数和(自身を含む): 39559062528

約数和(自身を除く): 19046066673

約数列:

[1, 3, 5, 11, 15, 17, 23, 33, 51, 55, 69, 85, 115, 165, 187, 253, 255, 345, 391, 561, 759, 935, 1173, 1265, 1955, 2805, 3795, 4301, 5865, 12903, 21505, 64515, 317957, 953871, 1589785, 3497527, 4769355, 5405269, 7313011, 10492581, 16215807, 17487635, 21939033, 27026345, 36565055, 52462905, 59457959, 80443121, 81079035, 109695165, 124321187, 178373877, 241329363, 297289795, 372963561, 402215605, 621605935, 891869385, 1206646815, 1367533057, 1864817805, 4102599171, 6837665285, 20512995855]

約数ペア:

[(1, 20512995855), (3, 6837665285), (5, 4102599171), (11, 1864817805), (15, 1367533057), (17, 1206646815), (23, 891869385), (33, 621605935), (51, 402215605), (55, 372963561), (69, 297289795), (85, 241329363), (115, 178373877), (165, 124321187), (187, 109695165), (253, 81079035), (255, 80443121), (345, 59457959), (391, 52462905), (561, 36565055), (759, 27026345), (935, 21939033), (1173, 17487635), (1265, 16215807), (1955, 10492581), (2805, 7313011), (3795, 5405269), (4301, 4769355), (5865, 3497527), (12903, 1589785), (21505, 953871), (64515, 317957)]