38678920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{138139}}^1$

素因数の和:138157

約数の個数: 32

約数和(自身を含む): 99460800

約数和(自身を除く): 60781880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 138139, 276278, 552556, 690695, 966973, 1105112, 1381390, 1933946, 2762780, 3867892, 4834865, 5525560, 7735784, 9669730, 19339460, 38678920]

約数ペア:

[(1, 38678920), (2, 19339460), (4, 9669730), (5, 7735784), (7, 5525560), (8, 4834865), (10, 3867892), (14, 2762780), (20, 1933946), (28, 1381390), (35, 1105112), (40, 966973), (56, 690695), (70, 552556), (140, 276278), (280, 138139)]