278345730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{1153}}^1$

素因数の和:1795

約数の個数: 64

約数和(自身を含む): 721203840

約数和(自身を除く): 442858110

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 619, 1153, 1238, 1857, 2306, 3095, 3459, 3714, 5765, 6190, 6918, 8047, 9285, 11530, 14989, 16094, 17295, 18570, 24141, 29978, 34590, 40235, 44967, 48282, 74945, 80470, 89934, 120705, 149890, 224835, 241410, 449670, 713707, 1427414, 2141121, 3568535, 4282242, 7137070, 9278191, 10705605, 18556382, 21411210, 27834573, 46390955, 55669146, 92781910, 139172865, 278345730]

約数ペア:

[(1, 278345730), (2, 139172865), (3, 92781910), (5, 55669146), (6, 46390955), (10, 27834573), (13, 21411210), (15, 18556382), (26, 10705605), (30, 9278191), (39, 7137070), (65, 4282242), (78, 3568535), (130, 2141121), (195, 1427414), (390, 713707), (619, 449670), (1153, 241410), (1238, 224835), (1857, 149890), (2306, 120705), (3095, 89934), (3459, 80470), (3714, 74945), (5765, 48282), (6190, 44967), (6918, 40235), (8047, 34590), (9285, 29978), (11530, 24141), (14989, 18570), (16094, 17295)]