12305720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 32140800

約数和(自身を除く): 19835080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 619, 710, 994, 1238, 1420, 1988, 2476, 2485, 2840, 3095, 3976, 4333, 4952, 4970, 6190, 8666, 9940, 12380, 17332, 19880, 21665, 24760, 34664, 43330, 43949, 86660, 87898, 173320, 175796, 219745, 307643, 351592, 439490, 615286, 878980, 1230572, 1538215, 1757960, 2461144, 3076430, 6152860, 12305720]

約数ペア:

[(1, 12305720), (2, 6152860), (4, 3076430), (5, 2461144), (7, 1757960), (8, 1538215), (10, 1230572), (14, 878980), (20, 615286), (28, 439490), (35, 351592), (40, 307643), (56, 219745), (70, 175796), (71, 173320), (140, 87898), (142, 86660), (280, 43949), (284, 43330), (355, 34664), (497, 24760), (568, 21665), (619, 19880), (710, 17332), (994, 12380), (1238, 9940), (1420, 8666), (1988, 6190), (2476, 4970), (2485, 4952), (2840, 4333), (3095, 3976)]