78741520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6883}}^1$

素因数の和:6920

約数の個数: 80

約数和(自身を含む): 215111232

約数和(自身を除く): 136369712

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2860, 5720, 6883, 11440, 13766, 27532, 34415, 55064, 68830, 75713, 89479, 110128, 137660, 151426, 178958, 275320, 302852, 357916, 378565, 447395, 550640, 605704, 715832, 757130, 894790, 984269, 1211408, 1431664, 1514260, 1789580, 1968538, 3028520, 3579160, 3937076, 4921345, 6057040, 7158320, 7874152, 9842690, 15748304, 19685380, 39370760, 78741520]

約数ペア:

[(1, 78741520), (2, 39370760), (4, 19685380), (5, 15748304), (8, 9842690), (10, 7874152), (11, 7158320), (13, 6057040), (16, 4921345), (20, 3937076), (22, 3579160), (26, 3028520), (40, 1968538), (44, 1789580), (52, 1514260), (55, 1431664), (65, 1211408), (80, 984269), (88, 894790), (104, 757130), (110, 715832), (130, 605704), (143, 550640), (176, 447395), (208, 378565), (220, 357916), (260, 302852), (286, 275320), (440, 178958), (520, 151426), (572, 137660), (715, 110128), (880, 89479), (1040, 75713), (1144, 68830), (1430, 55064), (2288, 34415), (2860, 27532), (5720, 13766), (6883, 11440)]