20210997680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13296709}}^1$

素因数の和:13296741

約数の個数: 40

約数和(自身を含む): 49463761200

約数和(自身を除く): 29252763520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13296709, 26593418, 53186836, 66483545, 106373672, 132967090, 212747344, 252637471, 265934180, 505274942, 531868360, 1010549884, 1063736720, 1263187355, 2021099768, 2526374710, 4042199536, 5052749420, 10105498840, 20210997680]

約数ペア:

[(1, 20210997680), (2, 10105498840), (4, 5052749420), (5, 4042199536), (8, 2526374710), (10, 2021099768), (16, 1263187355), (19, 1063736720), (20, 1010549884), (38, 531868360), (40, 505274942), (76, 265934180), (80, 252637471), (95, 212747344), (152, 132967090), (190, 106373672), (304, 66483545), (380, 53186836), (760, 26593418), (1520, 13296709)]