638528072

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{2857}}^1$

素因数の和:3190

約数の個数: 64

約数和(自身を含む): 1478843520

約数和(自身を除く): 840315448

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 307, 364, 614, 728, 1228, 2149, 2456, 2857, 3991, 4298, 5714, 7982, 8596, 11428, 15964, 17192, 19999, 22856, 27937, 31928, 37141, 39998, 55874, 74282, 79996, 111748, 148564, 159992, 223496, 259987, 297128, 519974, 877099, 1039948, 1754198, 2079896, 3508396, 6139693, 7016792, 11402287, 12279386, 22804574, 24558772, 45609148, 49117544, 79816009, 91218296, 159632018, 319264036, 638528072]

約数ペア:

[(1, 638528072), (2, 319264036), (4, 159632018), (7, 91218296), (8, 79816009), (13, 49117544), (14, 45609148), (26, 24558772), (28, 22804574), (52, 12279386), (56, 11402287), (91, 7016792), (104, 6139693), (182, 3508396), (307, 2079896), (364, 1754198), (614, 1039948), (728, 877099), (1228, 519974), (2149, 297128), (2456, 259987), (2857, 223496), (3991, 159992), (4298, 148564), (5714, 111748), (7982, 79996), (8596, 74282), (11428, 55874), (15964, 39998), (17192, 37141), (19999, 31928), (22856, 27937)]