131679320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1031}}^1$

素因数の和:1176

約数の個数: 64

約数和(自身を含む): 309104640

約数和(自身を除く): 177425320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 103, 124, 155, 206, 248, 310, 412, 515, 620, 824, 1030, 1031, 1240, 2060, 2062, 3193, 4120, 4124, 5155, 6386, 8248, 10310, 12772, 15965, 20620, 25544, 31930, 31961, 41240, 63860, 63922, 106193, 127720, 127844, 159805, 212386, 255688, 319610, 424772, 530965, 639220, 849544, 1061930, 1278440, 2123860, 3291983, 4247720, 6583966, 13167932, 16459915, 26335864, 32919830, 65839660, 131679320]

約数ペア:

[(1, 131679320), (2, 65839660), (4, 32919830), (5, 26335864), (8, 16459915), (10, 13167932), (20, 6583966), (31, 4247720), (40, 3291983), (62, 2123860), (103, 1278440), (124, 1061930), (155, 849544), (206, 639220), (248, 530965), (310, 424772), (412, 319610), (515, 255688), (620, 212386), (824, 159805), (1030, 127844), (1031, 127720), (1240, 106193), (2060, 63922), (2062, 63860), (3193, 41240), (4120, 31961), (4124, 31930), (5155, 25544), (6386, 20620), (8248, 15965), (10310, 12772)]