12520280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 30412800

約数和(自身を除く): 17892520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 439, 460, 620, 713, 878, 920, 1240, 1426, 1756, 2195, 2852, 3512, 3565, 4390, 5704, 7130, 8780, 10097, 13609, 14260, 17560, 20194, 27218, 28520, 40388, 50485, 54436, 68045, 80776, 100970, 108872, 136090, 201940, 272180, 313007, 403880, 544360, 626014, 1252028, 1565035, 2504056, 3130070, 6260140, 12520280]

約数ペア:

[(1, 12520280), (2, 6260140), (4, 3130070), (5, 2504056), (8, 1565035), (10, 1252028), (20, 626014), (23, 544360), (31, 403880), (40, 313007), (46, 272180), (62, 201940), (92, 136090), (115, 108872), (124, 100970), (155, 80776), (184, 68045), (230, 54436), (248, 50485), (310, 40388), (439, 28520), (460, 27218), (620, 20194), (713, 17560), (878, 14260), (920, 13609), (1240, 10097), (1426, 8780), (1756, 7130), (2195, 5704), (2852, 4390), (3512, 3565)]