64588120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39383}}^1$

素因数の和:39435

約数の個数: 32

約数和(自身を含む): 148871520

約数和(自身を除く): 84283400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39383, 78766, 157532, 196915, 315064, 393830, 787660, 1575320, 1614703, 3229406, 6458812, 8073515, 12917624, 16147030, 32294060, 64588120]

約数ペア:

[(1, 64588120), (2, 32294060), (4, 16147030), (5, 12917624), (8, 8073515), (10, 6458812), (20, 3229406), (40, 1614703), (41, 1575320), (82, 787660), (164, 393830), (205, 315064), (328, 196915), (410, 157532), (820, 78766), (1640, 39383)]