389616640

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{1553}}^1$

素因数の和:1592

約数の個数: 132

約数和(自身を含む): 1087914996

約数和(自身を除く): 698298356

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 980, 1024, 1120, 1280, 1553, 1568, 1792, 1960, 2240, 2560, 3106, 3136, 3584, 3920, 4480, 5120, 6212, 6272, 7168, 7765, 7840, 8960, 10871, 12424, 12544, 15530, 15680, 17920, 21742, 24848, 25088, 31060, 31360, 35840, 43484, 49696, 50176, 54355, 62120, 62720, 76097, 86968, 99392, 108710, 124240, 125440, 152194, 173936, 198784, 217420, 248480, 250880, 304388, 347872, 380485, 397568, 434840, 496960, 608776, 695744, 760970, 795136, 869680, 993920, 1217552, 1391488, 1521940, 1590272, 1739360, 1987840, 2435104, 2782976, 3043880, 3478720, 3975680, 4870208, 5565952, 6087760, 6957440, 7951360, 9740416, 11131904, 12175520, 13914880, 19480832, 24351040, 27829760, 38961664, 48702080, 55659520, 77923328, 97404160, 194808320, 389616640]

約数ペア:

[(1, 389616640), (2, 194808320), (4, 97404160), (5, 77923328), (7, 55659520), (8, 48702080), (10, 38961664), (14, 27829760), (16, 24351040), (20, 19480832), (28, 13914880), (32, 12175520), (35, 11131904), (40, 9740416), (49, 7951360), (56, 6957440), (64, 6087760), (70, 5565952), (80, 4870208), (98, 3975680), (112, 3478720), (128, 3043880), (140, 2782976), (160, 2435104), (196, 1987840), (224, 1739360), (245, 1590272), (256, 1521940), (280, 1391488), (320, 1217552), (392, 993920), (448, 869680), (490, 795136), (512, 760970), (560, 695744), (640, 608776), (784, 496960), (896, 434840), (980, 397568), (1024, 380485), (1120, 347872), (1280, 304388), (1553, 250880), (1568, 248480), (1792, 217420), (1960, 198784), (2240, 173936), (2560, 152194), (3106, 125440), (3136, 124240), (3584, 108710), (3920, 99392), (4480, 86968), (5120, 76097), (6212, 62720), (6272, 62120), (7168, 54355), (7765, 50176), (7840, 49696), (8960, 43484), (10871, 35840), (12424, 31360), (12544, 31060), (15530, 25088), (15680, 24848), (17920, 21742)]