640815168

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1201}}^1$

素因数の和:1620

約数の個数: 112

約数和(自身を含む): 1944201344

約数和(自身を除く): 1303386176

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 168, 192, 224, 336, 397, 448, 672, 794, 1191, 1201, 1344, 1588, 2382, 2402, 2779, 3176, 3603, 4764, 4804, 5558, 6352, 7206, 8337, 8407, 9528, 9608, 11116, 12704, 14412, 16674, 16814, 19056, 19216, 22232, 25221, 25408, 28824, 33348, 33628, 38112, 38432, 44464, 50442, 57648, 66696, 67256, 76224, 76864, 88928, 100884, 115296, 133392, 134512, 177856, 201768, 230592, 266784, 269024, 403536, 476797, 533568, 538048, 807072, 953594, 1430391, 1614144, 1907188, 2860782, 3337579, 3814376, 5721564, 6675158, 7628752, 10012737, 11443128, 13350316, 15257504, 20025474, 22886256, 26700632, 30515008, 40050948, 45772512, 53401264, 80101896, 91545024, 106802528, 160203792, 213605056, 320407584, 640815168]

約数ペア:

[(1, 640815168), (2, 320407584), (3, 213605056), (4, 160203792), (6, 106802528), (7, 91545024), (8, 80101896), (12, 53401264), (14, 45772512), (16, 40050948), (21, 30515008), (24, 26700632), (28, 22886256), (32, 20025474), (42, 15257504), (48, 13350316), (56, 11443128), (64, 10012737), (84, 7628752), (96, 6675158), (112, 5721564), (168, 3814376), (192, 3337579), (224, 2860782), (336, 1907188), (397, 1614144), (448, 1430391), (672, 953594), (794, 807072), (1191, 538048), (1201, 533568), (1344, 476797), (1588, 403536), (2382, 269024), (2402, 266784), (2779, 230592), (3176, 201768), (3603, 177856), (4764, 134512), (4804, 133392), (5558, 115296), (6352, 100884), (7206, 88928), (8337, 76864), (8407, 76224), (9528, 67256), (9608, 66696), (11116, 57648), (12704, 50442), (14412, 44464), (16674, 38432), (16814, 38112), (19056, 33628), (19216, 33348), (22232, 28824), (25221, 25408)]