20381423104

素因数分解:

$2^9\times 7^1\times {\mathrm{2347}}^1\times {\mathrm{2423}}^1$

素因数の和:4795

約数の個数: 80

約数和(自身を含む): 46579661568

約数和(自身を除く): 26198238464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 2347, 2423, 3584, 4694, 4846, 9388, 9692, 16429, 16961, 18776, 19384, 32858, 33922, 37552, 38768, 65716, 67844, 75104, 77536, 131432, 135688, 150208, 155072, 262864, 271376, 300416, 310144, 525728, 542752, 600832, 620288, 1051456, 1085504, 1201664, 1240576, 2102912, 2171008, 4205824, 4342016, 5686781, 8411648, 8684032, 11373562, 22747124, 39807467, 45494248, 79614934, 90988496, 159229868, 181976992, 318459736, 363953984, 636919472, 727907968, 1273838944, 1455815936, 2547677888, 2911631872, 5095355776, 10190711552, 20381423104]

約数ペア:

[(1, 20381423104), (2, 10190711552), (4, 5095355776), (7, 2911631872), (8, 2547677888), (14, 1455815936), (16, 1273838944), (28, 727907968), (32, 636919472), (56, 363953984), (64, 318459736), (112, 181976992), (128, 159229868), (224, 90988496), (256, 79614934), (448, 45494248), (512, 39807467), (896, 22747124), (1792, 11373562), (2347, 8684032), (2423, 8411648), (3584, 5686781), (4694, 4342016), (4846, 4205824), (9388, 2171008), (9692, 2102912), (16429, 1240576), (16961, 1201664), (18776, 1085504), (19384, 1051456), (32858, 620288), (33922, 600832), (37552, 542752), (38768, 525728), (65716, 310144), (67844, 300416), (75104, 271376), (77536, 262864), (131432, 155072), (135688, 150208)]