1980137320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{70019}}^1$

素因数の和:70138

約数の個数: 64

約数和(自身を含む): 5142268800

約数和(自身を除く): 3162131480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2828, 3535, 4040, 5656, 7070, 14140, 28280, 70019, 140038, 280076, 350095, 490133, 560152, 700190, 980266, 1400380, 1960532, 2450665, 2800760, 3921064, 4901330, 7071919, 9802660, 14143838, 19605320, 28287676, 35359595, 49503433, 56575352, 70719190, 99006866, 141438380, 198013732, 247517165, 282876760, 396027464, 495034330, 990068660, 1980137320]

約数ペア:

[(1, 1980137320), (2, 990068660), (4, 495034330), (5, 396027464), (7, 282876760), (8, 247517165), (10, 198013732), (14, 141438380), (20, 99006866), (28, 70719190), (35, 56575352), (40, 49503433), (56, 35359595), (70, 28287676), (101, 19605320), (140, 14143838), (202, 9802660), (280, 7071919), (404, 4901330), (505, 3921064), (707, 2800760), (808, 2450665), (1010, 1960532), (1414, 1400380), (2020, 980266), (2828, 700190), (3535, 560152), (4040, 490133), (5656, 350095), (7070, 280076), (14140, 140038), (28280, 70019)]