201220242064

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{661908691}}^1$

素因数の和:661908718

約数の個数: 20

約数和(自身を含む): 410383389040

約数和(自身を除く): 209163146976

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 661908691, 1323817382, 2647634764, 5295269528, 10590539056, 12576265129, 25152530258, 50305060516, 100610121032, 201220242064]

約数ペア:

[(1, 201220242064), (2, 100610121032), (4, 50305060516), (8, 25152530258), (16, 12576265129), (19, 10590539056), (38, 5295269528), (76, 2647634764), (152, 1323817382), (304, 661908691)]