129455840

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9091}}^1$

素因数の和:9195

約数の個数: 48

約数和(自身を含む): 309309840

約数和(自身を除く): 179854000

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, 7120, 9091, 14240, 18182, 36364, 45455, 72728, 90910, 145456, 181820, 290912, 363640, 727280, 809099, 1454560, 1618198, 3236396, 4045495, 6472792, 8090990, 12945584, 16181980, 25891168, 32363960, 64727920, 129455840]

約数ペア:

[(1, 129455840), (2, 64727920), (4, 32363960), (5, 25891168), (8, 16181980), (10, 12945584), (16, 8090990), (20, 6472792), (32, 4045495), (40, 3236396), (80, 1618198), (89, 1454560), (160, 809099), (178, 727280), (356, 363640), (445, 290912), (712, 181820), (890, 145456), (1424, 90910), (1780, 72728), (2848, 45455), (3560, 36364), (7120, 18182), (9091, 14240)]