678431005

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{19249}}^1$

素因数の和:19333

約数の個数: 32

約数和(自身を含む): 997920000

約数和(自身を除く): 319488995

約数列:

[1, 5, 7, 19, 35, 53, 95, 133, 265, 371, 665, 1007, 1855, 5035, 7049, 19249, 35245, 96245, 134743, 365731, 673715, 1020197, 1828655, 2560117, 5100985, 7141379, 12800585, 19383743, 35706895, 96918715, 135686201, 678431005]

約数ペア:

[(1, 678431005), (5, 135686201), (7, 96918715), (19, 35706895), (35, 19383743), (53, 12800585), (95, 7141379), (133, 5100985), (265, 2560117), (371, 1828655), (665, 1020197), (1007, 673715), (1855, 365731), (5035, 134743), (7049, 96245), (19249, 35245)]