20518776

素因数分解:

$2^3\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:389

約数の個数: 96

約数和(自身を含む): 59529600

約数和(自身を除く): 39010824

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 29, 31, 36, 58, 62, 72, 87, 93, 116, 124, 174, 186, 232, 248, 261, 279, 317, 348, 372, 522, 558, 634, 696, 744, 899, 951, 1044, 1116, 1268, 1798, 1902, 2088, 2232, 2536, 2697, 2853, 3596, 3804, 5394, 5706, 7192, 7608, 8091, 9193, 9827, 10788, 11412, 16182, 18386, 19654, 21576, 22824, 27579, 29481, 32364, 36772, 39308, 55158, 58962, 64728, 73544, 78616, 82737, 88443, 110316, 117924, 165474, 176886, 220632, 235848, 284983, 330948, 353772, 569966, 661896, 707544, 854949, 1139932, 1709898, 2279864, 2564847, 3419796, 5129694, 6839592, 10259388, 20518776]

約数ペア:

[(1, 20518776), (2, 10259388), (3, 6839592), (4, 5129694), (6, 3419796), (8, 2564847), (9, 2279864), (12, 1709898), (18, 1139932), (24, 854949), (29, 707544), (31, 661896), (36, 569966), (58, 353772), (62, 330948), (72, 284983), (87, 235848), (93, 220632), (116, 176886), (124, 165474), (174, 117924), (186, 110316), (232, 88443), (248, 82737), (261, 78616), (279, 73544), (317, 64728), (348, 58962), (372, 55158), (522, 39308), (558, 36772), (634, 32364), (696, 29481), (744, 27579), (899, 22824), (951, 21576), (1044, 19654), (1116, 18386), (1268, 16182), (1798, 11412), (1902, 10788), (2088, 9827), (2232, 9193), (2536, 8091), (2697, 7608), (2853, 7192), (3596, 5706), (3804, 5394)]