71828925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 143990784

約数和(自身を除く): 72161859

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 41, 47, 71, 75, 105, 123, 141, 175, 205, 213, 235, 287, 329, 355, 497, 525, 615, 705, 861, 987, 1025, 1065, 1175, 1435, 1491, 1645, 1775, 1927, 2485, 2911, 3075, 3337, 3525, 4305, 4935, 5325, 5781, 7175, 7455, 8225, 8733, 9635, 10011, 12425, 13489, 14555, 16685, 20377, 21525, 23359, 24675, 28905, 37275, 40467, 43665, 48175, 50055, 61131, 67445, 70077, 72775, 83425, 101885, 116795, 136817, 144525, 202335, 218325, 250275, 305655, 337225, 350385, 410451, 509425, 583975, 684085, 957719, 1011675, 1528275, 1751925, 2052255, 2873157, 3420425, 4788595, 10261275, 14365785, 23942975, 71828925]

約数ペア:

[(1, 71828925), (3, 23942975), (5, 14365785), (7, 10261275), (15, 4788595), (21, 3420425), (25, 2873157), (35, 2052255), (41, 1751925), (47, 1528275), (71, 1011675), (75, 957719), (105, 684085), (123, 583975), (141, 509425), (175, 410451), (205, 350385), (213, 337225), (235, 305655), (287, 250275), (329, 218325), (355, 202335), (497, 144525), (525, 136817), (615, 116795), (705, 101885), (861, 83425), (987, 72775), (1025, 70077), (1065, 67445), (1175, 61131), (1435, 50055), (1491, 48175), (1645, 43665), (1775, 40467), (1927, 37275), (2485, 28905), (2911, 24675), (3075, 23359), (3337, 21525), (3525, 20377), (4305, 16685), (4935, 14555), (5325, 13489), (5781, 12425), (7175, 10011), (7455, 9635), (8225, 8733)]