278323955

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{4051}}^1$

素因数の和:4227

約数の個数: 32

約数和(自身を含む): 413887488

約数和(自身を除く): 135563533

約数列:

[1, 5, 7, 13, 35, 65, 91, 151, 455, 755, 1057, 1963, 4051, 5285, 9815, 13741, 20255, 28357, 52663, 68705, 141785, 263315, 368641, 611701, 1843205, 3058505, 4281907, 7952113, 21409535, 39760565, 55664791, 278323955]

約数ペア:

[(1, 278323955), (5, 55664791), (7, 39760565), (13, 21409535), (35, 7952113), (65, 4281907), (91, 3058505), (151, 1843205), (455, 611701), (755, 368641), (1057, 263315), (1963, 141785), (4051, 68705), (5285, 52663), (9815, 28357), (13741, 20255)]