49978880

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{2789}}^1$

素因数の和:2819

約数の個数: 80

約数和(自身を含む): 137000160

約数和(自身を除く): 87021280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 2789, 3584, 4480, 5578, 8960, 11156, 13945, 17920, 19523, 22312, 27890, 39046, 44624, 55780, 78092, 89248, 97615, 111560, 156184, 178496, 195230, 223120, 312368, 356992, 390460, 446240, 624736, 713984, 780920, 892480, 1249472, 1427968, 1561840, 1784960, 2498944, 3123680, 3569920, 4997888, 6247360, 7139840, 9995776, 12494720, 24989440, 49978880]

約数ペア:

[(1, 49978880), (2, 24989440), (4, 12494720), (5, 9995776), (7, 7139840), (8, 6247360), (10, 4997888), (14, 3569920), (16, 3123680), (20, 2498944), (28, 1784960), (32, 1561840), (35, 1427968), (40, 1249472), (56, 892480), (64, 780920), (70, 713984), (80, 624736), (112, 446240), (128, 390460), (140, 356992), (160, 312368), (224, 223120), (256, 195230), (280, 178496), (320, 156184), (448, 111560), (512, 97615), (560, 89248), (640, 78092), (896, 55780), (1120, 44624), (1280, 39046), (1792, 27890), (2240, 22312), (2560, 19523), (2789, 17920), (3584, 13945), (4480, 11156), (5578, 8960)]