18897920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3691}}^1$

素因数の和:3716

約数の個数: 44

約数和(自身を含む): 45345144

約数和(自身を除く): 26447224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3691, 5120, 7382, 14764, 18455, 29528, 36910, 59056, 73820, 118112, 147640, 236224, 295280, 472448, 590560, 944896, 1181120, 1889792, 2362240, 3779584, 4724480, 9448960, 18897920]

約数ペア:

[(1, 18897920), (2, 9448960), (4, 4724480), (5, 3779584), (8, 2362240), (10, 1889792), (16, 1181120), (20, 944896), (32, 590560), (40, 472448), (64, 295280), (80, 236224), (128, 147640), (160, 118112), (256, 73820), (320, 59056), (512, 36910), (640, 29528), (1024, 18455), (1280, 14764), (2560, 7382), (3691, 5120)]