128857428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{2293}}^1$

素因数の和:2533

約数の個数: 72

約数和(自身を含む): 374087168

約数和(自身を除く): 245229740

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 223, 252, 446, 669, 892, 1338, 1561, 2007, 2293, 2676, 3122, 4014, 4586, 4683, 6244, 6879, 8028, 9172, 9366, 13758, 14049, 16051, 18732, 20637, 27516, 28098, 32102, 41274, 48153, 56196, 64204, 82548, 96306, 144459, 192612, 288918, 511339, 577836, 1022678, 1534017, 2045356, 3068034, 3579373, 4602051, 6136068, 7158746, 9204102, 10738119, 14317492, 18408204, 21476238, 32214357, 42952476, 64428714, 128857428]

約数ペア:

[(1, 128857428), (2, 64428714), (3, 42952476), (4, 32214357), (6, 21476238), (7, 18408204), (9, 14317492), (12, 10738119), (14, 9204102), (18, 7158746), (21, 6136068), (28, 4602051), (36, 3579373), (42, 3068034), (63, 2045356), (84, 1534017), (126, 1022678), (223, 577836), (252, 511339), (446, 288918), (669, 192612), (892, 144459), (1338, 96306), (1561, 82548), (2007, 64204), (2293, 56196), (2676, 48153), (3122, 41274), (4014, 32102), (4586, 28098), (4683, 27516), (6244, 20637), (6879, 18732), (8028, 16051), (9172, 14049), (9366, 13758)]