257932740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{330683}}^1$

素因数の和:330708

約数の個数: 48

約数和(自身を含む): 777768768

約数和(自身を除く): 519836028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 330683, 661366, 992049, 1322732, 1653415, 1984098, 3306830, 3968196, 4298879, 4960245, 6613660, 8597758, 9920490, 12896637, 17195516, 19840980, 21494395, 25793274, 42988790, 51586548, 64483185, 85977580, 128966370, 257932740]

約数ペア:

[(1, 257932740), (2, 128966370), (3, 85977580), (4, 64483185), (5, 51586548), (6, 42988790), (10, 25793274), (12, 21494395), (13, 19840980), (15, 17195516), (20, 12896637), (26, 9920490), (30, 8597758), (39, 6613660), (52, 4960245), (60, 4298879), (65, 3968196), (78, 3306830), (130, 1984098), (156, 1653415), (195, 1322732), (260, 992049), (390, 661366), (780, 330683)]