19195540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 31607660

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 53, 65, 70, 91, 106, 130, 140, 182, 199, 212, 260, 265, 364, 371, 398, 455, 530, 689, 742, 796, 910, 995, 1060, 1378, 1393, 1484, 1820, 1855, 1990, 2587, 2756, 2786, 3445, 3710, 3980, 4823, 5174, 5572, 6890, 6965, 7420, 9646, 10348, 10547, 12935, 13780, 13930, 18109, 19292, 21094, 24115, 25870, 27860, 36218, 42188, 48230, 51740, 52735, 72436, 73829, 90545, 96460, 105470, 137111, 147658, 181090, 210940, 274222, 295316, 362180, 369145, 548444, 685555, 738290, 959777, 1371110, 1476580, 1919554, 2742220, 3839108, 4798885, 9597770, 19195540]

約数ペア:

[(1, 19195540), (2, 9597770), (4, 4798885), (5, 3839108), (7, 2742220), (10, 1919554), (13, 1476580), (14, 1371110), (20, 959777), (26, 738290), (28, 685555), (35, 548444), (52, 369145), (53, 362180), (65, 295316), (70, 274222), (91, 210940), (106, 181090), (130, 147658), (140, 137111), (182, 105470), (199, 96460), (212, 90545), (260, 73829), (265, 72436), (364, 52735), (371, 51740), (398, 48230), (455, 42188), (530, 36218), (689, 27860), (742, 25870), (796, 24115), (910, 21094), (995, 19292), (1060, 18109), (1378, 13930), (1393, 13780), (1484, 12935), (1820, 10547), (1855, 10348), (1990, 9646), (2587, 7420), (2756, 6965), (2786, 6890), (3445, 5572), (3710, 5174), (3980, 4823)]