131261440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{827}}^1$

素因数の和:883

約数の個数: 88

約数和(自身を含む): 325423872

約数和(自身を除く): 194162432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 827, 992, 1024, 1240, 1280, 1654, 1984, 2480, 2560, 3308, 3968, 4135, 4960, 5120, 6616, 7936, 8270, 9920, 13232, 15872, 16540, 19840, 25637, 26464, 31744, 33080, 39680, 51274, 52928, 66160, 79360, 102548, 105856, 128185, 132320, 158720, 205096, 211712, 256370, 264640, 410192, 423424, 512740, 529280, 820384, 846848, 1025480, 1058560, 1640768, 2050960, 2117120, 3281536, 4101920, 4234240, 6563072, 8203840, 13126144, 16407680, 26252288, 32815360, 65630720, 131261440]

約数ペア:

[(1, 131261440), (2, 65630720), (4, 32815360), (5, 26252288), (8, 16407680), (10, 13126144), (16, 8203840), (20, 6563072), (31, 4234240), (32, 4101920), (40, 3281536), (62, 2117120), (64, 2050960), (80, 1640768), (124, 1058560), (128, 1025480), (155, 846848), (160, 820384), (248, 529280), (256, 512740), (310, 423424), (320, 410192), (496, 264640), (512, 256370), (620, 211712), (640, 205096), (827, 158720), (992, 132320), (1024, 128185), (1240, 105856), (1280, 102548), (1654, 79360), (1984, 66160), (2480, 52928), (2560, 51274), (3308, 39680), (3968, 33080), (4135, 31744), (4960, 26464), (5120, 25637), (6616, 19840), (7936, 16540), (8270, 15872), (9920, 13232)]