20789760

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{2707}}^1$

素因数の和:2733

約数の個数: 80

約数和(自身を含む): 66486816

約数和(自身を除く): 45697056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 2707, 3840, 5414, 7680, 8121, 10828, 13535, 16242, 21656, 27070, 32484, 40605, 43312, 54140, 64968, 81210, 86624, 108280, 129936, 162420, 173248, 216560, 259872, 324840, 346496, 433120, 519744, 649680, 692992, 866240, 1039488, 1299360, 1385984, 1732480, 2078976, 2598720, 3464960, 4157952, 5197440, 6929920, 10394880, 20789760]

約数ペア:

[(1, 20789760), (2, 10394880), (3, 6929920), (4, 5197440), (5, 4157952), (6, 3464960), (8, 2598720), (10, 2078976), (12, 1732480), (15, 1385984), (16, 1299360), (20, 1039488), (24, 866240), (30, 692992), (32, 649680), (40, 519744), (48, 433120), (60, 346496), (64, 324840), (80, 259872), (96, 216560), (120, 173248), (128, 162420), (160, 129936), (192, 108280), (240, 86624), (256, 81210), (320, 64968), (384, 54140), (480, 43312), (512, 40605), (640, 32484), (768, 27070), (960, 21656), (1280, 16242), (1536, 13535), (1920, 10828), (2560, 8121), (2707, 7680), (3840, 5414)]