21545280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7481}}^1$

素因数の和:7504

約数の個数: 84

約数和(自身を含む): 74116692

約数和(自身を除く): 52571412

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 7481, 14962, 22443, 29924, 37405, 44886, 59848, 67329, 74810, 89772, 112215, 119696, 134658, 149620, 179544, 224430, 239392, 269316, 299240, 336645, 359088, 448860, 478784, 538632, 598480, 673290, 718176, 897720, 1077264, 1196960, 1346580, 1436352, 1795440, 2154528, 2393920, 2693160, 3590880, 4309056, 5386320, 7181760, 10772640, 21545280]

約数ペア:

[(1, 21545280), (2, 10772640), (3, 7181760), (4, 5386320), (5, 4309056), (6, 3590880), (8, 2693160), (9, 2393920), (10, 2154528), (12, 1795440), (15, 1436352), (16, 1346580), (18, 1196960), (20, 1077264), (24, 897720), (30, 718176), (32, 673290), (36, 598480), (40, 538632), (45, 478784), (48, 448860), (60, 359088), (64, 336645), (72, 299240), (80, 269316), (90, 239392), (96, 224430), (120, 179544), (144, 149620), (160, 134658), (180, 119696), (192, 112215), (240, 89772), (288, 74810), (320, 67329), (360, 59848), (480, 44886), (576, 37405), (720, 29924), (960, 22443), (1440, 14962), (2880, 7481)]