12917720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{739}}^1$

素因数の和:792

約数の個数: 64

約数和(自身を含む): 31968000

約数和(自身を除く): 19050280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 115, 152, 184, 190, 230, 380, 437, 460, 739, 760, 874, 920, 1478, 1748, 2185, 2956, 3496, 3695, 4370, 5912, 7390, 8740, 14041, 14780, 16997, 17480, 28082, 29560, 33994, 56164, 67988, 70205, 84985, 112328, 135976, 140410, 169970, 280820, 322943, 339940, 561640, 645886, 679880, 1291772, 1614715, 2583544, 3229430, 6458860, 12917720]

約数ペア:

[(1, 12917720), (2, 6458860), (4, 3229430), (5, 2583544), (8, 1614715), (10, 1291772), (19, 679880), (20, 645886), (23, 561640), (38, 339940), (40, 322943), (46, 280820), (76, 169970), (92, 140410), (95, 135976), (115, 112328), (152, 84985), (184, 70205), (190, 67988), (230, 56164), (380, 33994), (437, 29560), (460, 28082), (739, 17480), (760, 16997), (874, 14780), (920, 14041), (1478, 8740), (1748, 7390), (2185, 5912), (2956, 4370), (3496, 3695)]