138987520

素因数分解:

$2^{11}\times 5^1\times 7^2\times {\mathrm{277}}^1$

素因数の和:318

約数の個数: 144

約数和(自身を含む): 389336220

約数和(自身を除く): 250348700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 277, 280, 320, 392, 448, 490, 512, 554, 560, 640, 784, 896, 980, 1024, 1108, 1120, 1280, 1385, 1568, 1792, 1939, 1960, 2048, 2216, 2240, 2560, 2770, 3136, 3584, 3878, 3920, 4432, 4480, 5120, 5540, 6272, 7168, 7756, 7840, 8864, 8960, 9695, 10240, 11080, 12544, 13573, 14336, 15512, 15680, 17728, 17920, 19390, 22160, 25088, 27146, 31024, 31360, 35456, 35840, 38780, 44320, 50176, 54292, 62048, 62720, 67865, 70912, 71680, 77560, 88640, 100352, 108584, 124096, 125440, 135730, 141824, 155120, 177280, 217168, 248192, 250880, 271460, 283648, 310240, 354560, 434336, 496384, 501760, 542920, 567296, 620480, 709120, 868672, 992768, 1085840, 1240960, 1418240, 1737344, 1985536, 2171680, 2481920, 2836480, 3474688, 3971072, 4343360, 4963840, 6949376, 8686720, 9927680, 13898752, 17373440, 19855360, 27797504, 34746880, 69493760, 138987520]

約数ペア:

[(1, 138987520), (2, 69493760), (4, 34746880), (5, 27797504), (7, 19855360), (8, 17373440), (10, 13898752), (14, 9927680), (16, 8686720), (20, 6949376), (28, 4963840), (32, 4343360), (35, 3971072), (40, 3474688), (49, 2836480), (56, 2481920), (64, 2171680), (70, 1985536), (80, 1737344), (98, 1418240), (112, 1240960), (128, 1085840), (140, 992768), (160, 868672), (196, 709120), (224, 620480), (245, 567296), (256, 542920), (277, 501760), (280, 496384), (320, 434336), (392, 354560), (448, 310240), (490, 283648), (512, 271460), (554, 250880), (560, 248192), (640, 217168), (784, 177280), (896, 155120), (980, 141824), (1024, 135730), (1108, 125440), (1120, 124096), (1280, 108584), (1385, 100352), (1568, 88640), (1792, 77560), (1939, 71680), (1960, 70912), (2048, 67865), (2216, 62720), (2240, 62048), (2560, 54292), (2770, 50176), (3136, 44320), (3584, 38780), (3878, 35840), (3920, 35456), (4432, 31360), (4480, 31024), (5120, 27146), (5540, 25088), (6272, 22160), (7168, 19390), (7756, 17920), (7840, 17728), (8864, 15680), (8960, 15512), (9695, 14336), (10240, 13573), (11080, 12544)]