12457660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 27482112

約数和(自身を除く): 15024452

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 283, 284, 310, 355, 566, 620, 710, 1132, 1415, 1420, 2201, 2830, 4402, 5660, 8773, 8804, 11005, 17546, 20093, 22010, 35092, 40186, 43865, 44020, 80372, 87730, 100465, 175460, 200930, 401860, 622883, 1245766, 2491532, 3114415, 6228830, 12457660]

約数ペア:

[(1, 12457660), (2, 6228830), (4, 3114415), (5, 2491532), (10, 1245766), (20, 622883), (31, 401860), (62, 200930), (71, 175460), (124, 100465), (142, 87730), (155, 80372), (283, 44020), (284, 43865), (310, 40186), (355, 35092), (566, 22010), (620, 20093), (710, 17546), (1132, 11005), (1415, 8804), (1420, 8773), (2201, 5660), (2830, 4402)]