2000867560

素因数分解:

$2^3\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{25639}}^1$

素因数の和:27601

約数の個数: 32

約数和(自身を含む): 4504435200

約数和(自身を除く): 2503567640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1951, 3902, 7804, 9755, 15608, 19510, 25639, 39020, 51278, 78040, 102556, 128195, 205112, 256390, 512780, 1025560, 50021689, 100043378, 200086756, 250108445, 400173512, 500216890, 1000433780, 2000867560]

約数ペア:

[(1, 2000867560), (2, 1000433780), (4, 500216890), (5, 400173512), (8, 250108445), (10, 200086756), (20, 100043378), (40, 50021689), (1951, 1025560), (3902, 512780), (7804, 256390), (9755, 205112), (15608, 128195), (19510, 102556), (25639, 78040), (39020, 51278)]