1888570980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{172001}}^1$

素因数の和:172077

約数の個数: 72

約数和(自身を含む): 5822611704

約数和(自身を除く): 3934040724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 172001, 344002, 516003, 688004, 860005, 1032006, 1548009, 1720010, 2064012, 2580015, 3096018, 3440020, 5160030, 6192036, 7740045, 10320060, 10492061, 15480090, 20984122, 30960180, 31476183, 41968244, 52460305, 62952366, 94428549, 104920610, 125904732, 157380915, 188857098, 209841220, 314761830, 377714196, 472142745, 629523660, 944285490, 1888570980]

約数ペア:

[(1, 1888570980), (2, 944285490), (3, 629523660), (4, 472142745), (5, 377714196), (6, 314761830), (9, 209841220), (10, 188857098), (12, 157380915), (15, 125904732), (18, 104920610), (20, 94428549), (30, 62952366), (36, 52460305), (45, 41968244), (60, 31476183), (61, 30960180), (90, 20984122), (122, 15480090), (180, 10492061), (183, 10320060), (244, 7740045), (305, 6192036), (366, 5160030), (549, 3440020), (610, 3096018), (732, 2580015), (915, 2064012), (1098, 1720010), (1220, 1548009), (1830, 1032006), (2196, 860005), (2745, 688004), (3660, 516003), (5490, 344002), (10980, 172001)]