138780500

素因数分解:

$2^2\times 5^3\times {\mathrm{53}}^1\times {\mathrm{5237}}^1$

素因数の和:5309

約数の個数: 48

約数和(自身を含む): 308874384

約数和(自身を除く): 170093884

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 125, 212, 250, 265, 500, 530, 1060, 1325, 2650, 5237, 5300, 6625, 10474, 13250, 20948, 26185, 26500, 52370, 104740, 130925, 261850, 277561, 523700, 555122, 654625, 1110244, 1309250, 1387805, 2618500, 2775610, 5551220, 6939025, 13878050, 27756100, 34695125, 69390250, 138780500]

約数ペア:

[(1, 138780500), (2, 69390250), (4, 34695125), (5, 27756100), (10, 13878050), (20, 6939025), (25, 5551220), (50, 2775610), (53, 2618500), (100, 1387805), (106, 1309250), (125, 1110244), (212, 654625), (250, 555122), (265, 523700), (500, 277561), (530, 261850), (1060, 130925), (1325, 104740), (2650, 52370), (5237, 26500), (5300, 26185), (6625, 20948), (10474, 13250)]