15515920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:392

約数の個数: 80

約数和(自身を含む): 41783040

約数和(自身を除く): 26267120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 103, 112, 140, 206, 269, 280, 412, 515, 538, 560, 721, 824, 1030, 1076, 1345, 1442, 1648, 1883, 2060, 2152, 2690, 2884, 3605, 3766, 4120, 4304, 5380, 5768, 7210, 7532, 8240, 9415, 10760, 11536, 14420, 15064, 18830, 21520, 27707, 28840, 30128, 37660, 55414, 57680, 75320, 110828, 138535, 150640, 193949, 221656, 277070, 387898, 443312, 554140, 775796, 969745, 1108280, 1551592, 1939490, 2216560, 3103184, 3878980, 7757960, 15515920]

約数ペア:

[(1, 15515920), (2, 7757960), (4, 3878980), (5, 3103184), (7, 2216560), (8, 1939490), (10, 1551592), (14, 1108280), (16, 969745), (20, 775796), (28, 554140), (35, 443312), (40, 387898), (56, 277070), (70, 221656), (80, 193949), (103, 150640), (112, 138535), (140, 110828), (206, 75320), (269, 57680), (280, 55414), (412, 37660), (515, 30128), (538, 28840), (560, 27707), (721, 21520), (824, 18830), (1030, 15064), (1076, 14420), (1345, 11536), (1442, 10760), (1648, 9415), (1883, 8240), (2060, 7532), (2152, 7210), (2690, 5768), (2884, 5380), (3605, 4304), (3766, 4120)]