20978877864

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1580687}}^1$

素因数の和:1580782

約数の個数: 64

約数和(自身を含む): 60698419200

約数和(自身を除く): 39719541336

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 79, 84, 158, 168, 237, 316, 474, 553, 632, 948, 1106, 1659, 1896, 2212, 3318, 4424, 6636, 13272, 1580687, 3161374, 4742061, 6322748, 9484122, 11064809, 12645496, 18968244, 22129618, 33194427, 37936488, 44259236, 66388854, 88518472, 124874273, 132777708, 249748546, 265555416, 374622819, 499497092, 749245638, 874119911, 998994184, 1498491276, 1748239822, 2622359733, 2996982552, 3496479644, 5244719466, 6992959288, 10489438932, 20978877864]

約数ペア:

[(1, 20978877864), (2, 10489438932), (3, 6992959288), (4, 5244719466), (6, 3496479644), (7, 2996982552), (8, 2622359733), (12, 1748239822), (14, 1498491276), (21, 998994184), (24, 874119911), (28, 749245638), (42, 499497092), (56, 374622819), (79, 265555416), (84, 249748546), (158, 132777708), (168, 124874273), (237, 88518472), (316, 66388854), (474, 44259236), (553, 37936488), (632, 33194427), (948, 22129618), (1106, 18968244), (1659, 12645496), (1896, 11064809), (2212, 9484122), (3318, 6322748), (4424, 4742061), (6636, 3161374), (13272, 1580687)]