19657560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12601}}^1$

素因数の和:12628

約数の個数: 64

約数和(自身を含む): 63514080

約数和(自身を除く): 43856520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12601, 25202, 37803, 50404, 63005, 75606, 100808, 126010, 151212, 163813, 189015, 252020, 302424, 327626, 378030, 491439, 504040, 655252, 756060, 819065, 982878, 1310504, 1512120, 1638130, 1965756, 2457195, 3276260, 3931512, 4914390, 6552520, 9828780, 19657560]

約数ペア:

[(1, 19657560), (2, 9828780), (3, 6552520), (4, 4914390), (5, 3931512), (6, 3276260), (8, 2457195), (10, 1965756), (12, 1638130), (13, 1512120), (15, 1310504), (20, 982878), (24, 819065), (26, 756060), (30, 655252), (39, 504040), (40, 491439), (52, 378030), (60, 327626), (65, 302424), (78, 252020), (104, 189015), (120, 163813), (130, 151212), (156, 126010), (195, 100808), (260, 75606), (312, 63005), (390, 50404), (520, 37803), (780, 25202), (1560, 12601)]