19512540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2521}}^1$

素因数の和:2579

約数の個数: 72

約数和(自身を含む): 60588528

約数和(自身を除く): 41075988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2521, 2580, 3870, 5042, 7563, 7740, 10084, 12605, 15126, 22689, 25210, 30252, 37815, 45378, 50420, 75630, 90756, 108403, 113445, 151260, 216806, 226890, 325209, 433612, 453780, 542015, 650418, 975627, 1084030, 1300836, 1626045, 1951254, 2168060, 3252090, 3902508, 4878135, 6504180, 9756270, 19512540]

約数ペア:

[(1, 19512540), (2, 9756270), (3, 6504180), (4, 4878135), (5, 3902508), (6, 3252090), (9, 2168060), (10, 1951254), (12, 1626045), (15, 1300836), (18, 1084030), (20, 975627), (30, 650418), (36, 542015), (43, 453780), (45, 433612), (60, 325209), (86, 226890), (90, 216806), (129, 151260), (172, 113445), (180, 108403), (215, 90756), (258, 75630), (387, 50420), (430, 45378), (516, 37815), (645, 30252), (774, 25210), (860, 22689), (1290, 15126), (1548, 12605), (1935, 10084), (2521, 7740), (2580, 7563), (3870, 5042)]