15899940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{12619}}^1$

素因数の和:12641

約数の個数: 72

約数和(自身を含む): 55124160

約数和(自身を除く): 39224220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 12619, 25238, 37857, 50476, 63095, 75714, 88333, 113571, 126190, 151428, 176666, 189285, 227142, 252380, 264999, 353332, 378570, 441665, 454284, 529998, 567855, 757140, 794997, 883330, 1059996, 1135710, 1324995, 1589994, 1766660, 2271420, 2649990, 3179988, 3974985, 5299980, 7949970, 15899940]

約数ペア:

[(1, 15899940), (2, 7949970), (3, 5299980), (4, 3974985), (5, 3179988), (6, 2649990), (7, 2271420), (9, 1766660), (10, 1589994), (12, 1324995), (14, 1135710), (15, 1059996), (18, 883330), (20, 794997), (21, 757140), (28, 567855), (30, 529998), (35, 454284), (36, 441665), (42, 378570), (45, 353332), (60, 264999), (63, 252380), (70, 227142), (84, 189285), (90, 176666), (105, 151428), (126, 126190), (140, 113571), (180, 88333), (210, 75714), (252, 63095), (315, 50476), (420, 37857), (630, 25238), (1260, 12619)]