19548180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{487}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 59684352

約数和(自身を除く): 40136172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 487, 669, 892, 974, 1115, 1338, 1461, 1948, 2007, 2230, 2435, 2676, 2922, 3345, 4014, 4383, 4460, 4870, 5844, 6690, 7305, 8028, 8766, 9740, 10035, 13380, 14610, 17532, 20070, 21915, 29220, 40140, 43830, 87660, 108601, 217202, 325803, 434404, 543005, 651606, 977409, 1086010, 1303212, 1629015, 1954818, 2172020, 3258030, 3909636, 4887045, 6516060, 9774090, 19548180]

約数ペア:

[(1, 19548180), (2, 9774090), (3, 6516060), (4, 4887045), (5, 3909636), (6, 3258030), (9, 2172020), (10, 1954818), (12, 1629015), (15, 1303212), (18, 1086010), (20, 977409), (30, 651606), (36, 543005), (45, 434404), (60, 325803), (90, 217202), (180, 108601), (223, 87660), (446, 43830), (487, 40140), (669, 29220), (892, 21915), (974, 20070), (1115, 17532), (1338, 14610), (1461, 13380), (1948, 10035), (2007, 9740), (2230, 8766), (2435, 8028), (2676, 7305), (2922, 6690), (3345, 5844), (4014, 4870), (4383, 4460)]