391538960

素因数分解:

$2^4\times 5^1\times {\mathrm{1619}}^1\times {\mathrm{3023}}^1$

素因数の和:4655

約数の個数: 40

約数和(自身を含む): 911191680

約数和(自身を除く): 519652720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1619, 3023, 3238, 6046, 6476, 8095, 12092, 12952, 15115, 16190, 24184, 25904, 30230, 32380, 48368, 60460, 64760, 120920, 129520, 241840, 4894237, 9788474, 19576948, 24471185, 39153896, 48942370, 78307792, 97884740, 195769480, 391538960]

約数ペア:

[(1, 391538960), (2, 195769480), (4, 97884740), (5, 78307792), (8, 48942370), (10, 39153896), (16, 24471185), (20, 19576948), (40, 9788474), (80, 4894237), (1619, 241840), (3023, 129520), (3238, 120920), (6046, 64760), (6476, 60460), (8095, 48368), (12092, 32380), (12952, 30230), (15115, 25904), (16190, 24184)]