20001632980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1310723}}^1$

素因数の和:1310848

約数の個数: 48

約数和(自身を含む): 48444359040

約数和(自身を除く): 28442726060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 7630, 15260, 1310723, 2621446, 5242892, 6553615, 9175061, 13107230, 18350122, 26214460, 36700244, 45875305, 91750610, 142868807, 183501220, 285737614, 571475228, 714344035, 1000081649, 1428688070, 2000163298, 2857376140, 4000326596, 5000408245, 10000816490, 20001632980]

約数ペア:

[(1, 20001632980), (2, 10000816490), (4, 5000408245), (5, 4000326596), (7, 2857376140), (10, 2000163298), (14, 1428688070), (20, 1000081649), (28, 714344035), (35, 571475228), (70, 285737614), (109, 183501220), (140, 142868807), (218, 91750610), (436, 45875305), (545, 36700244), (763, 26214460), (1090, 18350122), (1526, 13107230), (2180, 9175061), (3052, 6553615), (3815, 5242892), (7630, 2621446), (15260, 1310723)]