311982160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3739}}^1$

素因数の和:3908

約数の個数: 80

約数和(自身を含む): 834768000

約数和(自身を除く): 522785840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 560, 596, 745, 1043, 1192, 1490, 2086, 2384, 2980, 3739, 4172, 5215, 5960, 7478, 8344, 10430, 11920, 14956, 16688, 18695, 20860, 26173, 29912, 37390, 41720, 52346, 59824, 74780, 83440, 104692, 130865, 149560, 209384, 261730, 299120, 418768, 523460, 557111, 1046920, 1114222, 2093840, 2228444, 2785555, 3899777, 4456888, 5571110, 7799554, 8913776, 11142220, 15599108, 19498885, 22284440, 31198216, 38997770, 44568880, 62396432, 77995540, 155991080, 311982160]

約数ペア:

[(1, 311982160), (2, 155991080), (4, 77995540), (5, 62396432), (7, 44568880), (8, 38997770), (10, 31198216), (14, 22284440), (16, 19498885), (20, 15599108), (28, 11142220), (35, 8913776), (40, 7799554), (56, 5571110), (70, 4456888), (80, 3899777), (112, 2785555), (140, 2228444), (149, 2093840), (280, 1114222), (298, 1046920), (560, 557111), (596, 523460), (745, 418768), (1043, 299120), (1192, 261730), (1490, 209384), (2086, 149560), (2384, 130865), (2980, 104692), (3739, 83440), (4172, 74780), (5215, 59824), (5960, 52346), (7478, 41720), (8344, 37390), (10430, 29912), (11920, 26173), (14956, 20860), (16688, 18695)]