1276001280

素因数分解:

$2^{10}\times 3^2\times 5^1\times {\mathrm{27691}}^1$

素因数の和:27722

約数の個数: 132

約数和(自身を含む): 4421470872

約数和(自身を除く): 3145469592

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1024, 1152, 1280, 1440, 1536, 1920, 2304, 2560, 2880, 3072, 3840, 4608, 5120, 5760, 7680, 9216, 11520, 15360, 23040, 27691, 46080, 55382, 83073, 110764, 138455, 166146, 221528, 249219, 276910, 332292, 415365, 443056, 498438, 553820, 664584, 830730, 886112, 996876, 1107640, 1246095, 1329168, 1661460, 1772224, 1993752, 2215280, 2492190, 2658336, 3322920, 3544448, 3987504, 4430560, 4984380, 5316672, 6645840, 7088896, 7975008, 8861120, 9968760, 10633344, 13291680, 14177792, 15950016, 17722240, 19937520, 21266688, 26583360, 28355584, 31900032, 35444480, 39875040, 42533376, 53166720, 63800064, 70888960, 79750080, 85066752, 106333440, 127600128, 141777920, 159500160, 212666880, 255200256, 319000320, 425333760, 638000640, 1276001280]

約数ペア:

[(1, 1276001280), (2, 638000640), (3, 425333760), (4, 319000320), (5, 255200256), (6, 212666880), (8, 159500160), (9, 141777920), (10, 127600128), (12, 106333440), (15, 85066752), (16, 79750080), (18, 70888960), (20, 63800064), (24, 53166720), (30, 42533376), (32, 39875040), (36, 35444480), (40, 31900032), (45, 28355584), (48, 26583360), (60, 21266688), (64, 19937520), (72, 17722240), (80, 15950016), (90, 14177792), (96, 13291680), (120, 10633344), (128, 9968760), (144, 8861120), (160, 7975008), (180, 7088896), (192, 6645840), (240, 5316672), (256, 4984380), (288, 4430560), (320, 3987504), (360, 3544448), (384, 3322920), (480, 2658336), (512, 2492190), (576, 2215280), (640, 1993752), (720, 1772224), (768, 1661460), (960, 1329168), (1024, 1246095), (1152, 1107640), (1280, 996876), (1440, 886112), (1536, 830730), (1920, 664584), (2304, 553820), (2560, 498438), (2880, 443056), (3072, 415365), (3840, 332292), (4608, 276910), (5120, 249219), (5760, 221528), (7680, 166146), (9216, 138455), (11520, 110764), (15360, 83073), (23040, 55382), (27691, 46080)]