239778420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{570901}}^1$

素因数の和:570920

約数の個数: 48

約数和(自身を含む): 767292288

約数和(自身を除く): 527513868

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 570901, 1141802, 1712703, 2283604, 2854505, 3425406, 3996307, 5709010, 6850812, 7992614, 8563515, 11418020, 11988921, 15985228, 17127030, 19981535, 23977842, 34254060, 39963070, 47955684, 59944605, 79926140, 119889210, 239778420]

約数ペア:

[(1, 239778420), (2, 119889210), (3, 79926140), (4, 59944605), (5, 47955684), (6, 39963070), (7, 34254060), (10, 23977842), (12, 19981535), (14, 17127030), (15, 15985228), (20, 11988921), (21, 11418020), (28, 8563515), (30, 7992614), (35, 6850812), (42, 5709010), (60, 3996307), (70, 3425406), (84, 2854505), (105, 2283604), (140, 1712703), (210, 1141802), (420, 570901)]