20921552640

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{605369}}^1$

素因数の和:605399

約数の個数: 144

約数和(自身を含む): 74242576800

約数和(自身を除く): 53321024160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 768, 864, 960, 1080, 1152, 1280, 1440, 1728, 1920, 2160, 2304, 2880, 3456, 3840, 4320, 5760, 6912, 8640, 11520, 17280, 34560, 605369, 1210738, 1816107, 2421476, 3026845, 3632214, 4842952, 5448321, 6053690, 7264428, 9080535, 9685904, 10896642, 12107380, 14528856, 16344963, 18161070, 19371808, 21793284, 24214760, 27241605, 29057712, 32689926, 36322140, 38743616, 43586568, 48429520, 54483210, 58115424, 65379852, 72644280, 77487232, 81724815, 87173136, 96859040, 108966420, 116230848, 130759704, 145288560, 154974464, 163449630, 174346272, 193718080, 217932840, 232461696, 261519408, 290577120, 326899260, 348692544, 387436160, 435865680, 464923392, 523038816, 581154240, 653798520, 697385088, 774872320, 871731360, 1046077632, 1162308480, 1307597040, 1394770176, 1743462720, 2092155264, 2324616960, 2615194080, 3486925440, 4184310528, 5230388160, 6973850880, 10460776320, 20921552640]

約数ペア:

[(1, 20921552640), (2, 10460776320), (3, 6973850880), (4, 5230388160), (5, 4184310528), (6, 3486925440), (8, 2615194080), (9, 2324616960), (10, 2092155264), (12, 1743462720), (15, 1394770176), (16, 1307597040), (18, 1162308480), (20, 1046077632), (24, 871731360), (27, 774872320), (30, 697385088), (32, 653798520), (36, 581154240), (40, 523038816), (45, 464923392), (48, 435865680), (54, 387436160), (60, 348692544), (64, 326899260), (72, 290577120), (80, 261519408), (90, 232461696), (96, 217932840), (108, 193718080), (120, 174346272), (128, 163449630), (135, 154974464), (144, 145288560), (160, 130759704), (180, 116230848), (192, 108966420), (216, 96859040), (240, 87173136), (256, 81724815), (270, 77487232), (288, 72644280), (320, 65379852), (360, 58115424), (384, 54483210), (432, 48429520), (480, 43586568), (540, 38743616), (576, 36322140), (640, 32689926), (720, 29057712), (768, 27241605), (864, 24214760), (960, 21793284), (1080, 19371808), (1152, 18161070), (1280, 16344963), (1440, 14528856), (1728, 12107380), (1920, 10896642), (2160, 9685904), (2304, 9080535), (2880, 7264428), (3456, 6053690), (3840, 5448321), (4320, 4842952), (5760, 3632214), (6912, 3026845), (8640, 2421476), (11520, 1816107), (17280, 1210738), (34560, 605369)]