25191140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 59489640

約数和(自身を除く): 34298500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 169, 257, 260, 290, 338, 377, 514, 580, 676, 754, 845, 1028, 1285, 1508, 1690, 1885, 2570, 3341, 3380, 3770, 4901, 5140, 6682, 7453, 7540, 9802, 13364, 14906, 16705, 19604, 24505, 29812, 33410, 37265, 43433, 49010, 66820, 74530, 86866, 96889, 98020, 149060, 173732, 193778, 217165, 387556, 434330, 484445, 868660, 968890, 1259557, 1937780, 2519114, 5038228, 6297785, 12595570, 25191140]

約数ペア:

[(1, 25191140), (2, 12595570), (4, 6297785), (5, 5038228), (10, 2519114), (13, 1937780), (20, 1259557), (26, 968890), (29, 868660), (52, 484445), (58, 434330), (65, 387556), (116, 217165), (130, 193778), (145, 173732), (169, 149060), (257, 98020), (260, 96889), (290, 86866), (338, 74530), (377, 66820), (514, 49010), (580, 43433), (676, 37265), (754, 33410), (845, 29812), (1028, 24505), (1285, 19604), (1508, 16705), (1690, 14906), (1885, 13364), (2570, 9802), (3341, 7540), (3380, 7453), (3770, 6682), (4901, 5140)]