13205140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{50789}}^1$

素因数の和:50811

約数の個数: 24

約数和(自身を含む): 29864520

約数和(自身を除く): 16659380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 50789, 101578, 203156, 253945, 507890, 660257, 1015780, 1320514, 2641028, 3301285, 6602570, 13205140]

約数ペア:

[(1, 13205140), (2, 6602570), (4, 3301285), (5, 2641028), (10, 1320514), (13, 1015780), (20, 660257), (26, 507890), (52, 253945), (65, 203156), (130, 101578), (260, 50789)]