78546660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1321}}^1$

素因数の和:2324

約数の個数: 48

約数和(自身を含む): 220319232

約数和(自身を除く): 141772572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 991, 1321, 1982, 2642, 2973, 3963, 3964, 4955, 5284, 5946, 6605, 7926, 9910, 11892, 13210, 14865, 15852, 19815, 19820, 26420, 29730, 39630, 59460, 79260, 1309111, 2618222, 3927333, 5236444, 6545555, 7854666, 13091110, 15709332, 19636665, 26182220, 39273330, 78546660]

約数ペア:

[(1, 78546660), (2, 39273330), (3, 26182220), (4, 19636665), (5, 15709332), (6, 13091110), (10, 7854666), (12, 6545555), (15, 5236444), (20, 3927333), (30, 2618222), (60, 1309111), (991, 79260), (1321, 59460), (1982, 39630), (2642, 29730), (2973, 26420), (3963, 19820), (3964, 19815), (4955, 15852), (5284, 14865), (5946, 13210), (6605, 11892), (7926, 9910)]