256530720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{534439}}^1$

素因数の和:534457

約数の個数: 48

約数和(自身を含む): 808073280

約数和(自身を除く): 551542560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 534439, 1068878, 1603317, 2137756, 2672195, 3206634, 4275512, 5344390, 6413268, 8016585, 8551024, 10688780, 12826536, 16033170, 17102048, 21377560, 25653072, 32066340, 42755120, 51306144, 64132680, 85510240, 128265360, 256530720]

約数ペア:

[(1, 256530720), (2, 128265360), (3, 85510240), (4, 64132680), (5, 51306144), (6, 42755120), (8, 32066340), (10, 25653072), (12, 21377560), (15, 17102048), (16, 16033170), (20, 12826536), (24, 10688780), (30, 8551024), (32, 8016585), (40, 6413268), (48, 5344390), (60, 4275512), (80, 3206634), (96, 2672195), (120, 2137756), (160, 1603317), (240, 1068878), (480, 534439)]