2639940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1913}}^1$

素因数の和:1948

約数の個数: 48

約数和(自身を含む): 7717248

約数和(自身を除く): 5077308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 1913, 3826, 5739, 7652, 9565, 11478, 19130, 22956, 28695, 38260, 43999, 57390, 87998, 114780, 131997, 175996, 219995, 263994, 439990, 527988, 659985, 879980, 1319970, 2639940]

約数ペア:

[(1, 2639940), (2, 1319970), (3, 879980), (4, 659985), (5, 527988), (6, 439990), (10, 263994), (12, 219995), (15, 175996), (20, 131997), (23, 114780), (30, 87998), (46, 57390), (60, 43999), (69, 38260), (92, 28695), (115, 22956), (138, 19130), (230, 11478), (276, 9565), (345, 7652), (460, 5739), (690, 3826), (1380, 1913)]