72809120

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5113}}^1$

素因数の和:5217

約数の個数: 48

約数和(自身を含む): 173978280

約数和(自身を除く): 101169160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 5113, 7120, 10226, 14240, 20452, 25565, 40904, 51130, 81808, 102260, 163616, 204520, 409040, 455057, 818080, 910114, 1820228, 2275285, 3640456, 4550570, 7280912, 9101140, 14561824, 18202280, 36404560, 72809120]

約数ペア:

[(1, 72809120), (2, 36404560), (4, 18202280), (5, 14561824), (8, 9101140), (10, 7280912), (16, 4550570), (20, 3640456), (32, 2275285), (40, 1820228), (80, 910114), (89, 818080), (160, 455057), (178, 409040), (356, 204520), (445, 163616), (712, 102260), (890, 81808), (1424, 51130), (1780, 40904), (2848, 25565), (3560, 20452), (5113, 14240), (7120, 10226)]