51376120

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3203}}^1$

素因数の和:3615

約数の個数: 32

約数和(自身を含む): 115920720

約数和(自身を除く): 64544600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3203, 3208, 4010, 6406, 8020, 12812, 16015, 16040, 25624, 32030, 64060, 128120, 1284403, 2568806, 5137612, 6422015, 10275224, 12844030, 25688060, 51376120]

約数ペア:

[(1, 51376120), (2, 25688060), (4, 12844030), (5, 10275224), (8, 6422015), (10, 5137612), (20, 2568806), (40, 1284403), (401, 128120), (802, 64060), (1604, 32030), (2005, 25624), (3203, 16040), (3208, 16015), (4010, 12812), (6406, 8020)]