20123005

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 29111040

約数和(自身を除く): 8988035

約数列:

[1, 5, 7, 35, 37, 41, 185, 205, 259, 287, 379, 1295, 1435, 1517, 1895, 2653, 7585, 10619, 13265, 14023, 15539, 53095, 70115, 77695, 98161, 108773, 490805, 543865, 574943, 2874715, 4024601, 20123005]

約数ペア:

[(1, 20123005), (5, 4024601), (7, 2874715), (35, 574943), (37, 543865), (41, 490805), (185, 108773), (205, 98161), (259, 77695), (287, 70115), (379, 53095), (1295, 15539), (1435, 14023), (1517, 13265), (1895, 10619), (2653, 7585)]