399897826

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 685843200

約数和(自身を除く): 285945374

約数列:

[1, 2, 19, 23, 38, 46, 53, 89, 97, 106, 178, 194, 437, 874, 1007, 1219, 1691, 1843, 2014, 2047, 2231, 2438, 3382, 3686, 4094, 4462, 4717, 5141, 8633, 9434, 10282, 17266, 23161, 38893, 42389, 46322, 77786, 84778, 89623, 97679, 108491, 118243, 164027, 179246, 195358, 198559, 216982, 236486, 328054, 397118, 457549, 915098, 2061329, 2246617, 3772621, 4122658, 4493234, 7545242, 8693431, 10523627, 17386862, 21047254, 199948913, 399897826]

約数ペア:

[(1, 399897826), (2, 199948913), (19, 21047254), (23, 17386862), (38, 10523627), (46, 8693431), (53, 7545242), (89, 4493234), (97, 4122658), (106, 3772621), (178, 2246617), (194, 2061329), (437, 915098), (874, 457549), (1007, 397118), (1219, 328054), (1691, 236486), (1843, 216982), (2014, 198559), (2047, 195358), (2231, 179246), (2438, 164027), (3382, 118243), (3686, 108491), (4094, 97679), (4462, 89623), (4717, 84778), (5141, 77786), (8633, 46322), (9434, 42389), (10282, 38893), (17266, 23161)]