820850768

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1\times {\mathrm{211}}^1$

素因数の和:496

約数の個数: 80

約数和(自身を含む): 1716080640

約数和(自身を除く): 895229872

約数列:

[1, 2, 4, 8, 16, 19, 38, 67, 76, 134, 152, 191, 211, 268, 304, 382, 422, 536, 764, 844, 1072, 1273, 1528, 1688, 2546, 3056, 3376, 3629, 4009, 5092, 7258, 8018, 10184, 12797, 14137, 14516, 16036, 20368, 25594, 28274, 29032, 32072, 40301, 51188, 56548, 58064, 64144, 80602, 102376, 113096, 161204, 204752, 226192, 243143, 268603, 322408, 486286, 537206, 644816, 765719, 972572, 1074412, 1531438, 1945144, 2148824, 2700167, 3062876, 3890288, 4297648, 5400334, 6125752, 10800668, 12251504, 21601336, 43202672, 51303173, 102606346, 205212692, 410425384, 820850768]

約数ペア:

[(1, 820850768), (2, 410425384), (4, 205212692), (8, 102606346), (16, 51303173), (19, 43202672), (38, 21601336), (67, 12251504), (76, 10800668), (134, 6125752), (152, 5400334), (191, 4297648), (211, 3890288), (268, 3062876), (304, 2700167), (382, 2148824), (422, 1945144), (536, 1531438), (764, 1074412), (844, 972572), (1072, 765719), (1273, 644816), (1528, 537206), (1688, 486286), (2546, 322408), (3056, 268603), (3376, 243143), (3629, 226192), (4009, 204752), (5092, 161204), (7258, 113096), (8018, 102376), (10184, 80602), (12797, 64144), (14137, 58064), (14516, 56548), (16036, 51188), (20368, 40301), (25594, 32072), (28274, 29032)]