81623280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1423}}^1$

素因数の和:1678

約数の個数: 80

約数和(自身を含む): 254269440

約数和(自身を除く): 172646160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 239, 240, 478, 717, 956, 1195, 1423, 1434, 1912, 2390, 2846, 2868, 3585, 3824, 4269, 4780, 5692, 5736, 7115, 7170, 8538, 9560, 11384, 11472, 14230, 14340, 17076, 19120, 21345, 22768, 28460, 28680, 34152, 42690, 56920, 57360, 68304, 85380, 113840, 170760, 340097, 341520, 680194, 1020291, 1360388, 1700485, 2040582, 2720776, 3400970, 4081164, 5101455, 5441552, 6801940, 8162328, 10202910, 13603880, 16324656, 20405820, 27207760, 40811640, 81623280]

約数ペア:

[(1, 81623280), (2, 40811640), (3, 27207760), (4, 20405820), (5, 16324656), (6, 13603880), (8, 10202910), (10, 8162328), (12, 6801940), (15, 5441552), (16, 5101455), (20, 4081164), (24, 3400970), (30, 2720776), (40, 2040582), (48, 1700485), (60, 1360388), (80, 1020291), (120, 680194), (239, 341520), (240, 340097), (478, 170760), (717, 113840), (956, 85380), (1195, 68304), (1423, 57360), (1434, 56920), (1912, 42690), (2390, 34152), (2846, 28680), (2868, 28460), (3585, 22768), (3824, 21345), (4269, 19120), (4780, 17076), (5692, 14340), (5736, 14230), (7115, 11472), (7170, 11384), (8538, 9560)]