78960040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1583}}^1$

素因数の和:1666

約数の個数: 64

約数和(自身を含む): 188179200

約数和(自身を除く): 109219160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 58, 86, 116, 145, 172, 215, 232, 290, 344, 430, 580, 860, 1160, 1247, 1583, 1720, 2494, 3166, 4988, 6235, 6332, 7915, 9976, 12470, 12664, 15830, 24940, 31660, 45907, 49880, 63320, 68069, 91814, 136138, 183628, 229535, 272276, 340345, 367256, 459070, 544552, 680690, 918140, 1361380, 1836280, 1974001, 2722760, 3948002, 7896004, 9870005, 15792008, 19740010, 39480020, 78960040]

約数ペア:

[(1, 78960040), (2, 39480020), (4, 19740010), (5, 15792008), (8, 9870005), (10, 7896004), (20, 3948002), (29, 2722760), (40, 1974001), (43, 1836280), (58, 1361380), (86, 918140), (116, 680690), (145, 544552), (172, 459070), (215, 367256), (232, 340345), (290, 272276), (344, 229535), (430, 183628), (580, 136138), (860, 91814), (1160, 68069), (1247, 63320), (1583, 49880), (1720, 45907), (2494, 31660), (3166, 24940), (4988, 15830), (6235, 12664), (6332, 12470), (7915, 9976)]