19214440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1$

素因数の和:602

約数の個数: 64

約数和(自身を含む): 49829760

約数和(自身を除く): 30615320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 163, 280, 326, 421, 652, 815, 842, 1141, 1304, 1630, 1684, 2105, 2282, 2947, 3260, 3368, 4210, 4564, 5705, 5894, 6520, 8420, 9128, 11410, 11788, 14735, 16840, 22820, 23576, 29470, 45640, 58940, 68623, 117880, 137246, 274492, 343115, 480361, 548984, 686230, 960722, 1372460, 1921444, 2401805, 2744920, 3842888, 4803610, 9607220, 19214440]

約数ペア:

[(1, 19214440), (2, 9607220), (4, 4803610), (5, 3842888), (7, 2744920), (8, 2401805), (10, 1921444), (14, 1372460), (20, 960722), (28, 686230), (35, 548984), (40, 480361), (56, 343115), (70, 274492), (140, 137246), (163, 117880), (280, 68623), (326, 58940), (421, 45640), (652, 29470), (815, 23576), (842, 22820), (1141, 16840), (1304, 14735), (1630, 11788), (1684, 11410), (2105, 9128), (2282, 8420), (2947, 6520), (3260, 5894), (3368, 5705), (4210, 4564)]