1290052010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9923477}}^1$

素因数の和:9923497

約数の個数: 16

約数和(自身を含む): 2500716456

約数和(自身を除く): 1210664446

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 9923477, 19846954, 49617385, 99234770, 129005201, 258010402, 645026005, 1290052010]

約数ペア:

[(1, 1290052010), (2, 645026005), (5, 258010402), (10, 129005201), (13, 99234770), (26, 49617385), (65, 19846954), (130, 9923477)]