78451040

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11959}}^1$

素因数の和:12015

約数の個数: 48

約数和(自身を含む): 189876960

約数和(自身を除く): 111425920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 11959, 23918, 47836, 59795, 95672, 119590, 191344, 239180, 382688, 478360, 490319, 956720, 980638, 1913440, 1961276, 2451595, 3922552, 4903190, 7845104, 9806380, 15690208, 19612760, 39225520, 78451040]

約数ペア:

[(1, 78451040), (2, 39225520), (4, 19612760), (5, 15690208), (8, 9806380), (10, 7845104), (16, 4903190), (20, 3922552), (32, 2451595), (40, 1961276), (41, 1913440), (80, 980638), (82, 956720), (160, 490319), (164, 478360), (205, 382688), (328, 239180), (410, 191344), (656, 119590), (820, 95672), (1312, 59795), (1640, 47836), (3280, 23918), (6560, 11959)]