77256520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2473}}^1$

素因数の和:2566

約数の個数: 64

約数和(自身を含む): 192378240

約数和(自身を除く): 115121720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2473, 2840, 3124, 3905, 4946, 6248, 7810, 9892, 12365, 15620, 19784, 24730, 27203, 31240, 49460, 54406, 98920, 108812, 136015, 175583, 217624, 272030, 351166, 544060, 702332, 877915, 1088120, 1404664, 1755830, 1931413, 3511660, 3862826, 7023320, 7725652, 9657065, 15451304, 19314130, 38628260, 77256520]

約数ペア:

[(1, 77256520), (2, 38628260), (4, 19314130), (5, 15451304), (8, 9657065), (10, 7725652), (11, 7023320), (20, 3862826), (22, 3511660), (40, 1931413), (44, 1755830), (55, 1404664), (71, 1088120), (88, 877915), (110, 702332), (142, 544060), (220, 351166), (284, 272030), (355, 217624), (440, 175583), (568, 136015), (710, 108812), (781, 98920), (1420, 54406), (1562, 49460), (2473, 31240), (2840, 27203), (3124, 24730), (3905, 19784), (4946, 15620), (6248, 12365), (7810, 9892)]