128781828

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{511039}}^1$

素因数の和:511056

約数の個数: 36

約数和(自身を含む): 372037120

約数和(自身を除く): 243255292

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 511039, 1022078, 1533117, 2044156, 3066234, 3577273, 4599351, 6132468, 7154546, 9198702, 10731819, 14309092, 18397404, 21463638, 32195457, 42927276, 64390914, 128781828]

約数ペア:

[(1, 128781828), (2, 64390914), (3, 42927276), (4, 32195457), (6, 21463638), (7, 18397404), (9, 14309092), (12, 10731819), (14, 9198702), (18, 7154546), (21, 6132468), (28, 4599351), (36, 3577273), (42, 3066234), (63, 2044156), (84, 1533117), (126, 1022078), (252, 511039)]