19742765

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 28615680

約数和(自身を除く): 8872915

約数列:

[1, 5, 7, 29, 35, 53, 145, 203, 265, 367, 371, 1015, 1537, 1835, 1855, 2569, 7685, 10643, 10759, 12845, 19451, 53215, 53795, 74501, 97255, 136157, 372505, 564079, 680785, 2820395, 3948553, 19742765]

約数ペア:

[(1, 19742765), (5, 3948553), (7, 2820395), (29, 680785), (35, 564079), (53, 372505), (145, 136157), (203, 97255), (265, 74501), (367, 53795), (371, 53215), (1015, 19451), (1537, 12845), (1835, 10759), (1855, 10643), (2569, 7685)]