99575680

素因数分解:

$2^7\times 5^1\times {\mathrm{157}}^1\times {\mathrm{991}}^1$

素因数の和:1167

約数の個数: 64

約数和(自身を含む): 239806080

約数和(自身を除く): 140230400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 314, 320, 628, 640, 785, 991, 1256, 1570, 1982, 2512, 3140, 3964, 4955, 5024, 6280, 7928, 9910, 10048, 12560, 15856, 19820, 20096, 25120, 31712, 39640, 50240, 63424, 79280, 100480, 126848, 155587, 158560, 311174, 317120, 622348, 634240, 777935, 1244696, 1555870, 2489392, 3111740, 4978784, 6223480, 9957568, 12446960, 19915136, 24893920, 49787840, 99575680]

約数ペア:

[(1, 99575680), (2, 49787840), (4, 24893920), (5, 19915136), (8, 12446960), (10, 9957568), (16, 6223480), (20, 4978784), (32, 3111740), (40, 2489392), (64, 1555870), (80, 1244696), (128, 777935), (157, 634240), (160, 622348), (314, 317120), (320, 311174), (628, 158560), (640, 155587), (785, 126848), (991, 100480), (1256, 79280), (1570, 63424), (1982, 50240), (2512, 39640), (3140, 31712), (3964, 25120), (4955, 20096), (5024, 19820), (6280, 15856), (7928, 12560), (9910, 10048)]