77697920

素因数分解:

$2^7\times 5^1\times {\mathrm{121403}}^1$

素因数の和:121422

約数の個数: 32

約数和(自身を含む): 185748120

約数和(自身を除く): 108050200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 121403, 242806, 485612, 607015, 971224, 1214030, 1942448, 2428060, 3884896, 4856120, 7769792, 9712240, 15539584, 19424480, 38848960, 77697920]

約数ペア:

[(1, 77697920), (2, 38848960), (4, 19424480), (5, 15539584), (8, 9712240), (10, 7769792), (16, 4856120), (20, 3884896), (32, 2428060), (40, 1942448), (64, 1214030), (80, 971224), (128, 607015), (160, 485612), (320, 242806), (640, 121403)]