128932720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1061}}^1$

素因数の和:1119

約数の個数: 120

約数和(自身を含む): 360298368

約数和(自身を除く): 231365648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 784, 868, 980, 1061, 1085, 1240, 1519, 1736, 1960, 2122, 2170, 2480, 3038, 3472, 3920, 4244, 4340, 5305, 6076, 7427, 7595, 8488, 8680, 10610, 12152, 14854, 15190, 16976, 17360, 21220, 24304, 29708, 30380, 32891, 37135, 42440, 51989, 59416, 60760, 65782, 74270, 84880, 103978, 118832, 121520, 131564, 148540, 164455, 207956, 230237, 259945, 263128, 297080, 328910, 415912, 460474, 519890, 526256, 594160, 657820, 831824, 920948, 1039780, 1151185, 1315640, 1611659, 1841896, 2079560, 2302370, 2631280, 3223318, 3683792, 4159120, 4604740, 6446636, 8058295, 9209480, 12893272, 16116590, 18418960, 25786544, 32233180, 64466360, 128932720]

約数ペア:

[(1, 128932720), (2, 64466360), (4, 32233180), (5, 25786544), (7, 18418960), (8, 16116590), (10, 12893272), (14, 9209480), (16, 8058295), (20, 6446636), (28, 4604740), (31, 4159120), (35, 3683792), (40, 3223318), (49, 2631280), (56, 2302370), (62, 2079560), (70, 1841896), (80, 1611659), (98, 1315640), (112, 1151185), (124, 1039780), (140, 920948), (155, 831824), (196, 657820), (217, 594160), (245, 526256), (248, 519890), (280, 460474), (310, 415912), (392, 328910), (434, 297080), (490, 263128), (496, 259945), (560, 230237), (620, 207956), (784, 164455), (868, 148540), (980, 131564), (1061, 121520), (1085, 118832), (1240, 103978), (1519, 84880), (1736, 74270), (1960, 65782), (2122, 60760), (2170, 59416), (2480, 51989), (3038, 42440), (3472, 37135), (3920, 32891), (4244, 30380), (4340, 29708), (5305, 24304), (6076, 21220), (7427, 17360), (7595, 16976), (8488, 15190), (8680, 14854), (10610, 12152)]