643863564

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{40927}}^1$

素因数の和:40979

約数の個数: 72

約数和(自身を含む): 1787735040

約数和(自身を除く): 1143871476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 36, 38, 46, 57, 69, 76, 92, 114, 138, 171, 207, 228, 276, 342, 414, 437, 684, 828, 874, 1311, 1748, 2622, 3933, 5244, 7866, 15732, 40927, 81854, 122781, 163708, 245562, 368343, 491124, 736686, 777613, 941321, 1473372, 1555226, 1882642, 2332839, 2823963, 3110452, 3765284, 4665678, 5647926, 6998517, 8471889, 9331356, 11295852, 13997034, 16943778, 17885099, 27994068, 33887556, 35770198, 53655297, 71540396, 107310594, 160965891, 214621188, 321931782, 643863564]

約数ペア:

[(1, 643863564), (2, 321931782), (3, 214621188), (4, 160965891), (6, 107310594), (9, 71540396), (12, 53655297), (18, 35770198), (19, 33887556), (23, 27994068), (36, 17885099), (38, 16943778), (46, 13997034), (57, 11295852), (69, 9331356), (76, 8471889), (92, 6998517), (114, 5647926), (138, 4665678), (171, 3765284), (207, 3110452), (228, 2823963), (276, 2332839), (342, 1882642), (414, 1555226), (437, 1473372), (684, 941321), (828, 777613), (874, 736686), (1311, 491124), (1748, 368343), (2622, 245562), (3933, 163708), (5244, 122781), (7866, 81854), (15732, 40927)]