261640210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{6869}}^1$

素因数の和:7182

約数の個数: 32

約数和(自身を含む): 508984560

約数和(自身を除く): 247344350

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 293, 586, 1465, 2930, 3809, 6869, 7618, 13738, 19045, 34345, 38090, 68690, 89297, 178594, 446485, 892970, 2012617, 4025234, 10063085, 20126170, 26164021, 52328042, 130820105, 261640210]

約数ペア:

[(1, 261640210), (2, 130820105), (5, 52328042), (10, 26164021), (13, 20126170), (26, 10063085), (65, 4025234), (130, 2012617), (293, 892970), (586, 446485), (1465, 178594), (2930, 89297), (3809, 68690), (6869, 38090), (7618, 34345), (13738, 19045)]