12680240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5113}}^1$

素因数の和:5157

約数の個数: 40

約数和(自身を含む): 30438528

約数和(自身を除く): 17758288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5113, 10226, 20452, 25565, 40904, 51130, 81808, 102260, 158503, 204520, 317006, 409040, 634012, 792515, 1268024, 1585030, 2536048, 3170060, 6340120, 12680240]

約数ペア:

[(1, 12680240), (2, 6340120), (4, 3170060), (5, 2536048), (8, 1585030), (10, 1268024), (16, 792515), (20, 634012), (31, 409040), (40, 317006), (62, 204520), (80, 158503), (124, 102260), (155, 81808), (248, 51130), (310, 40904), (496, 25565), (620, 20452), (1240, 10226), (2480, 5113)]