66167140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{254489}}^1$

素因数の和:254511

約数の個数: 24

約数和(自身を含む): 149640120

約数和(自身を除く): 83472980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 254489, 508978, 1017956, 1272445, 2544890, 3308357, 5089780, 6616714, 13233428, 16541785, 33083570, 66167140]

約数ペア:

[(1, 66167140), (2, 33083570), (4, 16541785), (5, 13233428), (10, 6616714), (13, 5089780), (20, 3308357), (26, 2544890), (52, 1272445), (65, 1017956), (130, 508978), (260, 254489)]