778878260

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{283}}^1\times {\mathrm{571}}^1$

素因数の和:1104

約数の個数: 48

約数和(自身を含む): 1651121472

約数和(自身を除く): 872243212

約数列:

[1, 2, 4, 5, 10, 20, 241, 283, 482, 566, 571, 964, 1132, 1142, 1205, 1415, 2284, 2410, 2830, 2855, 4820, 5660, 5710, 11420, 68203, 136406, 137611, 161593, 272812, 275222, 323186, 341015, 550444, 646372, 682030, 688055, 807965, 1364060, 1376110, 1615930, 2752220, 3231860, 38943913, 77887826, 155775652, 194719565, 389439130, 778878260]

約数ペア:

[(1, 778878260), (2, 389439130), (4, 194719565), (5, 155775652), (10, 77887826), (20, 38943913), (241, 3231860), (283, 2752220), (482, 1615930), (566, 1376110), (571, 1364060), (964, 807965), (1132, 688055), (1142, 682030), (1205, 646372), (1415, 550444), (2284, 341015), (2410, 323186), (2830, 275222), (2855, 272812), (4820, 161593), (5660, 137611), (5710, 136406), (11420, 68203)]