19838340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{359}}^1$

素因数の和:681

約数の個数: 72

約数和(自身を含む): 60540480

約数和(自身を除く): 40702140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 307, 359, 614, 718, 921, 1077, 1228, 1436, 1535, 1795, 1842, 2154, 2763, 3070, 3231, 3590, 3684, 4308, 4605, 5385, 5526, 6140, 6462, 7180, 9210, 10770, 11052, 12924, 13815, 16155, 18420, 21540, 27630, 32310, 55260, 64620, 110213, 220426, 330639, 440852, 551065, 661278, 991917, 1102130, 1322556, 1653195, 1983834, 2204260, 3306390, 3967668, 4959585, 6612780, 9919170, 19838340]

約数ペア:

[(1, 19838340), (2, 9919170), (3, 6612780), (4, 4959585), (5, 3967668), (6, 3306390), (9, 2204260), (10, 1983834), (12, 1653195), (15, 1322556), (18, 1102130), (20, 991917), (30, 661278), (36, 551065), (45, 440852), (60, 330639), (90, 220426), (180, 110213), (307, 64620), (359, 55260), (614, 32310), (718, 27630), (921, 21540), (1077, 18420), (1228, 16155), (1436, 13815), (1535, 12924), (1795, 11052), (1842, 10770), (2154, 9210), (2763, 7180), (3070, 6462), (3231, 6140), (3590, 5526), (3684, 5385), (4308, 4605)]