72786220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2137}}^1$

素因数の和:2290

約数の個数: 48

約数和(自身を含む): 165943008

約数和(自身を除く): 93156788

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 1310, 1703, 2137, 2620, 3406, 4274, 6812, 8515, 8548, 10685, 17030, 21370, 27781, 34060, 42740, 55562, 111124, 138905, 277810, 279947, 555620, 559894, 1119788, 1399735, 2799470, 3639311, 5598940, 7278622, 14557244, 18196555, 36393110, 72786220]

約数ペア:

[(1, 72786220), (2, 36393110), (4, 18196555), (5, 14557244), (10, 7278622), (13, 5598940), (20, 3639311), (26, 2799470), (52, 1399735), (65, 1119788), (130, 559894), (131, 555620), (260, 279947), (262, 277810), (524, 138905), (655, 111124), (1310, 55562), (1703, 42740), (2137, 34060), (2620, 27781), (3406, 21370), (4274, 17030), (6812, 10685), (8515, 8548)]