19696820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 49787136

約数和(自身を除く): 30090316

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 71, 97, 110, 130, 142, 143, 194, 220, 260, 284, 286, 355, 388, 485, 572, 710, 715, 781, 923, 970, 1067, 1261, 1420, 1430, 1562, 1846, 1940, 2134, 2522, 2860, 3124, 3692, 3905, 4268, 4615, 5044, 5335, 6305, 6887, 7810, 9230, 10153, 10670, 12610, 13774, 13871, 15620, 18460, 20306, 21340, 25220, 27548, 27742, 34435, 40612, 50765, 55484, 68870, 69355, 75757, 89531, 101530, 137740, 138710, 151514, 179062, 203060, 277420, 303028, 358124, 378785, 447655, 757570, 895310, 984841, 1515140, 1790620, 1969682, 3939364, 4924205, 9848410, 19696820]

約数ペア:

[(1, 19696820), (2, 9848410), (4, 4924205), (5, 3939364), (10, 1969682), (11, 1790620), (13, 1515140), (20, 984841), (22, 895310), (26, 757570), (44, 447655), (52, 378785), (55, 358124), (65, 303028), (71, 277420), (97, 203060), (110, 179062), (130, 151514), (142, 138710), (143, 137740), (194, 101530), (220, 89531), (260, 75757), (284, 69355), (286, 68870), (355, 55484), (388, 50765), (485, 40612), (572, 34435), (710, 27742), (715, 27548), (781, 25220), (923, 21340), (970, 20306), (1067, 18460), (1261, 15620), (1420, 13871), (1430, 13774), (1562, 12610), (1846, 10670), (1940, 10153), (2134, 9230), (2522, 7810), (2860, 6887), (3124, 6305), (3692, 5335), (3905, 5044), (4268, 4615)]