142273240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{457}}^1$

素因数の和:692

約数の個数: 64

約数和(自身を含む): 330089760

約数和(自身を除く): 187816520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 181, 215, 344, 362, 430, 457, 724, 860, 905, 914, 1448, 1720, 1810, 1828, 2285, 3620, 3656, 4570, 7240, 7783, 9140, 15566, 18280, 19651, 31132, 38915, 39302, 62264, 77830, 78604, 82717, 98255, 155660, 157208, 165434, 196510, 311320, 330868, 393020, 413585, 661736, 786040, 827170, 1654340, 3308680, 3556831, 7113662, 14227324, 17784155, 28454648, 35568310, 71136620, 142273240]

約数ペア:

[(1, 142273240), (2, 71136620), (4, 35568310), (5, 28454648), (8, 17784155), (10, 14227324), (20, 7113662), (40, 3556831), (43, 3308680), (86, 1654340), (172, 827170), (181, 786040), (215, 661736), (344, 413585), (362, 393020), (430, 330868), (457, 311320), (724, 196510), (860, 165434), (905, 157208), (914, 155660), (1448, 98255), (1720, 82717), (1810, 78604), (1828, 77830), (2285, 62264), (3620, 39302), (3656, 38915), (4570, 31132), (7240, 19651), (7783, 18280), (9140, 15566)]