221728640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1151}}^1$

素因数の和:1220

約数の個数: 128

約数和(自身を含む): 620421120

約数和(自身を除く): 398692480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 112, 128, 140, 160, 172, 215, 224, 280, 301, 320, 344, 430, 448, 560, 602, 640, 688, 860, 896, 1120, 1151, 1204, 1376, 1505, 1720, 2240, 2302, 2408, 2752, 3010, 3440, 4480, 4604, 4816, 5504, 5755, 6020, 6880, 8057, 9208, 9632, 11510, 12040, 13760, 16114, 18416, 19264, 23020, 24080, 27520, 32228, 36832, 38528, 40285, 46040, 48160, 49493, 64456, 73664, 80570, 92080, 96320, 98986, 128912, 147328, 161140, 184160, 192640, 197972, 247465, 257824, 322280, 346451, 368320, 395944, 494930, 515648, 644560, 692902, 736640, 791888, 989860, 1031296, 1289120, 1385804, 1583776, 1732255, 1979720, 2578240, 2771608, 3167552, 3464510, 3959440, 5156480, 5543216, 6335104, 6929020, 7918880, 11086432, 13858040, 15837760, 22172864, 27716080, 31675520, 44345728, 55432160, 110864320, 221728640]

約数ペア:

[(1, 221728640), (2, 110864320), (4, 55432160), (5, 44345728), (7, 31675520), (8, 27716080), (10, 22172864), (14, 15837760), (16, 13858040), (20, 11086432), (28, 7918880), (32, 6929020), (35, 6335104), (40, 5543216), (43, 5156480), (56, 3959440), (64, 3464510), (70, 3167552), (80, 2771608), (86, 2578240), (112, 1979720), (128, 1732255), (140, 1583776), (160, 1385804), (172, 1289120), (215, 1031296), (224, 989860), (280, 791888), (301, 736640), (320, 692902), (344, 644560), (430, 515648), (448, 494930), (560, 395944), (602, 368320), (640, 346451), (688, 322280), (860, 257824), (896, 247465), (1120, 197972), (1151, 192640), (1204, 184160), (1376, 161140), (1505, 147328), (1720, 128912), (2240, 98986), (2302, 96320), (2408, 92080), (2752, 80570), (3010, 73664), (3440, 64456), (4480, 49493), (4604, 48160), (4816, 46040), (5504, 40285), (5755, 38528), (6020, 36832), (6880, 32228), (8057, 27520), (9208, 24080), (9632, 23020), (11510, 19264), (12040, 18416), (13760, 16114)]