200163820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{503}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 427508928

約数和(自身を除く): 227345108

約数列:

[1, 2, 4, 5, 10, 20, 101, 197, 202, 394, 404, 503, 505, 788, 985, 1006, 1010, 1970, 2012, 2020, 2515, 3940, 5030, 10060, 19897, 39794, 50803, 79588, 99091, 99485, 101606, 198182, 198970, 203212, 254015, 396364, 397940, 495455, 508030, 990910, 1016060, 1981820, 10008191, 20016382, 40032764, 50040955, 100081910, 200163820]

約数ペア:

[(1, 200163820), (2, 100081910), (4, 50040955), (5, 40032764), (10, 20016382), (20, 10008191), (101, 1981820), (197, 1016060), (202, 990910), (394, 508030), (404, 495455), (503, 397940), (505, 396364), (788, 254015), (985, 203212), (1006, 198970), (1010, 198182), (1970, 101606), (2012, 99485), (2020, 99091), (2515, 79588), (3940, 50803), (5030, 39794), (10060, 19897)]