218785280

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:480

約数の個数: 160

約数和(自身を含む): 621656640

約数和(自身を除く): 402871360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 128, 140, 145, 160, 203, 224, 232, 256, 280, 290, 320, 406, 421, 448, 464, 512, 560, 580, 640, 812, 842, 896, 928, 1015, 1120, 1160, 1280, 1624, 1684, 1792, 1856, 2030, 2105, 2240, 2320, 2560, 2947, 3248, 3368, 3584, 3712, 4060, 4210, 4480, 4640, 5894, 6496, 6736, 7424, 8120, 8420, 8960, 9280, 11788, 12209, 12992, 13472, 14735, 14848, 16240, 16840, 17920, 18560, 23576, 24418, 25984, 26944, 29470, 32480, 33680, 37120, 47152, 48836, 51968, 53888, 58940, 61045, 64960, 67360, 74240, 85463, 94304, 97672, 103936, 107776, 117880, 122090, 129920, 134720, 170926, 188608, 195344, 215552, 235760, 244180, 259840, 269440, 341852, 377216, 390688, 427315, 471520, 488360, 519680, 538880, 683704, 754432, 781376, 854630, 943040, 976720, 1077760, 1367408, 1508864, 1562752, 1709260, 1886080, 1953440, 2734816, 3125504, 3418520, 3772160, 3906880, 5469632, 6251008, 6837040, 7544320, 7813760, 10939264, 13674080, 15627520, 21878528, 27348160, 31255040, 43757056, 54696320, 109392640, 218785280]

約数ペア:

[(1, 218785280), (2, 109392640), (4, 54696320), (5, 43757056), (7, 31255040), (8, 27348160), (10, 21878528), (14, 15627520), (16, 13674080), (20, 10939264), (28, 7813760), (29, 7544320), (32, 6837040), (35, 6251008), (40, 5469632), (56, 3906880), (58, 3772160), (64, 3418520), (70, 3125504), (80, 2734816), (112, 1953440), (116, 1886080), (128, 1709260), (140, 1562752), (145, 1508864), (160, 1367408), (203, 1077760), (224, 976720), (232, 943040), (256, 854630), (280, 781376), (290, 754432), (320, 683704), (406, 538880), (421, 519680), (448, 488360), (464, 471520), (512, 427315), (560, 390688), (580, 377216), (640, 341852), (812, 269440), (842, 259840), (896, 244180), (928, 235760), (1015, 215552), (1120, 195344), (1160, 188608), (1280, 170926), (1624, 134720), (1684, 129920), (1792, 122090), (1856, 117880), (2030, 107776), (2105, 103936), (2240, 97672), (2320, 94304), (2560, 85463), (2947, 74240), (3248, 67360), (3368, 64960), (3584, 61045), (3712, 58940), (4060, 53888), (4210, 51968), (4480, 48836), (4640, 47152), (5894, 37120), (6496, 33680), (6736, 32480), (7424, 29470), (8120, 26944), (8420, 25984), (8960, 24418), (9280, 23576), (11788, 18560), (12209, 17920), (12992, 16840), (13472, 16240), (14735, 14848)]