16898940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:659

約数の個数: 72

約数和(自身を含む): 51612288

約数和(自身を除く): 34713348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 421, 446, 669, 842, 892, 1115, 1263, 1338, 1684, 2007, 2105, 2230, 2526, 2676, 3345, 3789, 4014, 4210, 4460, 5052, 6315, 6690, 7578, 8028, 8420, 10035, 12630, 13380, 15156, 18945, 20070, 25260, 37890, 40140, 75780, 93883, 187766, 281649, 375532, 469415, 563298, 844947, 938830, 1126596, 1408245, 1689894, 1877660, 2816490, 3379788, 4224735, 5632980, 8449470, 16898940]

約数ペア:

[(1, 16898940), (2, 8449470), (3, 5632980), (4, 4224735), (5, 3379788), (6, 2816490), (9, 1877660), (10, 1689894), (12, 1408245), (15, 1126596), (18, 938830), (20, 844947), (30, 563298), (36, 469415), (45, 375532), (60, 281649), (90, 187766), (180, 93883), (223, 75780), (421, 40140), (446, 37890), (669, 25260), (842, 20070), (892, 18945), (1115, 15156), (1263, 13380), (1338, 12630), (1684, 10035), (2007, 8420), (2105, 8028), (2230, 7578), (2526, 6690), (2676, 6315), (3345, 5052), (3789, 4460), (4014, 4210)]