31728420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{491}}^1$

素因数の和:865

約数の個数: 72

約数和(自身を含む): 96707520

約数和(自身を除く): 64979100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 359, 491, 718, 982, 1077, 1436, 1473, 1795, 1964, 2154, 2455, 2946, 3231, 3590, 4308, 4419, 4910, 5385, 5892, 6462, 7180, 7365, 8838, 9820, 10770, 12924, 14730, 16155, 17676, 21540, 22095, 29460, 32310, 44190, 64620, 88380, 176269, 352538, 528807, 705076, 881345, 1057614, 1586421, 1762690, 2115228, 2644035, 3172842, 3525380, 5288070, 6345684, 7932105, 10576140, 15864210, 31728420]

約数ペア:

[(1, 31728420), (2, 15864210), (3, 10576140), (4, 7932105), (5, 6345684), (6, 5288070), (9, 3525380), (10, 3172842), (12, 2644035), (15, 2115228), (18, 1762690), (20, 1586421), (30, 1057614), (36, 881345), (45, 705076), (60, 528807), (90, 352538), (180, 176269), (359, 88380), (491, 64620), (718, 44190), (982, 32310), (1077, 29460), (1436, 22095), (1473, 21540), (1795, 17676), (1964, 16155), (2154, 14730), (2455, 12924), (2946, 10770), (3231, 9820), (3590, 8838), (4308, 7365), (4419, 7180), (4910, 6462), (5385, 5892)]