25287080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6947}}^1$

素因数の和:6978

約数の個数: 64

約数和(自身を含む): 70035840

約数和(自身を除く): 44748760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 6947, 13894, 27788, 34735, 48629, 55576, 69470, 90311, 97258, 138940, 180622, 194516, 243145, 277880, 361244, 389032, 451555, 486290, 632177, 722488, 903110, 972580, 1264354, 1806220, 1945160, 2528708, 3160885, 3612440, 5057416, 6321770, 12643540, 25287080]

約数ペア:

[(1, 25287080), (2, 12643540), (4, 6321770), (5, 5057416), (7, 3612440), (8, 3160885), (10, 2528708), (13, 1945160), (14, 1806220), (20, 1264354), (26, 972580), (28, 903110), (35, 722488), (40, 632177), (52, 486290), (56, 451555), (65, 389032), (70, 361244), (91, 277880), (104, 243145), (130, 194516), (140, 180622), (182, 138940), (260, 97258), (280, 90311), (364, 69470), (455, 55576), (520, 48629), (728, 34735), (910, 27788), (1820, 13894), (3640, 6947)]