19195980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{463}}^1\times {\mathrm{691}}^1$

素因数の和:1166

約数の個数: 48

約数和(自身を含む): 53942784

約数和(自身を除く): 34746804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 463, 691, 926, 1382, 1389, 1852, 2073, 2315, 2764, 2778, 3455, 4146, 4630, 5556, 6910, 6945, 8292, 9260, 10365, 13820, 13890, 20730, 27780, 41460, 319933, 639866, 959799, 1279732, 1599665, 1919598, 3199330, 3839196, 4798995, 6398660, 9597990, 19195980]

約数ペア:

[(1, 19195980), (2, 9597990), (3, 6398660), (4, 4798995), (5, 3839196), (6, 3199330), (10, 1919598), (12, 1599665), (15, 1279732), (20, 959799), (30, 639866), (60, 319933), (463, 41460), (691, 27780), (926, 20730), (1382, 13890), (1389, 13820), (1852, 10365), (2073, 9260), (2315, 8292), (2764, 6945), (2778, 6910), (3455, 5556), (4146, 4630)]