256788720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4297}}^1$

素因数の和:4399

約数の個数: 120

約数和(自身を含む): 872975376

約数和(自身を除く): 616186656

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 83, 90, 120, 144, 166, 180, 240, 249, 332, 360, 415, 498, 664, 720, 747, 830, 996, 1245, 1328, 1494, 1660, 1992, 2490, 2988, 3320, 3735, 3984, 4297, 4980, 5976, 6640, 7470, 8594, 9960, 11952, 12891, 14940, 17188, 19920, 21485, 25782, 29880, 34376, 38673, 42970, 51564, 59760, 64455, 68752, 77346, 85940, 103128, 128910, 154692, 171880, 193365, 206256, 257820, 309384, 343760, 356651, 386730, 515640, 618768, 713302, 773460, 1031280, 1069953, 1426604, 1546920, 1783255, 2139906, 2853208, 3093840, 3209859, 3566510, 4279812, 5349765, 5706416, 6419718, 7133020, 8559624, 10699530, 12839436, 14266040, 16049295, 17119248, 21399060, 25678872, 28532080, 32098590, 42798120, 51357744, 64197180, 85596240, 128394360, 256788720]

約数ペア:

[(1, 256788720), (2, 128394360), (3, 85596240), (4, 64197180), (5, 51357744), (6, 42798120), (8, 32098590), (9, 28532080), (10, 25678872), (12, 21399060), (15, 17119248), (16, 16049295), (18, 14266040), (20, 12839436), (24, 10699530), (30, 8559624), (36, 7133020), (40, 6419718), (45, 5706416), (48, 5349765), (60, 4279812), (72, 3566510), (80, 3209859), (83, 3093840), (90, 2853208), (120, 2139906), (144, 1783255), (166, 1546920), (180, 1426604), (240, 1069953), (249, 1031280), (332, 773460), (360, 713302), (415, 618768), (498, 515640), (664, 386730), (720, 356651), (747, 343760), (830, 309384), (996, 257820), (1245, 206256), (1328, 193365), (1494, 171880), (1660, 154692), (1992, 128910), (2490, 103128), (2988, 85940), (3320, 77346), (3735, 68752), (3984, 64455), (4297, 59760), (4980, 51564), (5976, 42970), (6640, 38673), (7470, 34376), (8594, 29880), (9960, 25782), (11952, 21485), (12891, 19920), (14940, 17188)]