688871680

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{76883}}^1$

素因数の和:76911

約数の個数: 72

約数和(自身を含む): 1885810752

約数和(自身を除く): 1196939072

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, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 76883, 153766, 307532, 384415, 538181, 615064, 768830, 1076362, 1230128, 1537660, 2152724, 2460256, 2690905, 3075320, 4305448, 4920512, 5381810, 6150640, 8610896, 9841024, 10763620, 12301280, 17221792, 19682048, 21527240, 24602560, 34443584, 43054480, 49205120, 68887168, 86108960, 98410240, 137774336, 172217920, 344435840, 688871680]

約数ペア:

[(1, 688871680), (2, 344435840), (4, 172217920), (5, 137774336), (7, 98410240), (8, 86108960), (10, 68887168), (14, 49205120), (16, 43054480), (20, 34443584), (28, 24602560), (32, 21527240), (35, 19682048), (40, 17221792), (56, 12301280), (64, 10763620), (70, 9841024), (80, 8610896), (112, 6150640), (128, 5381810), (140, 4920512), (160, 4305448), (224, 3075320), (256, 2690905), (280, 2460256), (320, 2152724), (448, 1537660), (560, 1230128), (640, 1076362), (896, 768830), (1120, 615064), (1280, 538181), (1792, 384415), (2240, 307532), (4480, 153766), (8960, 76883)]