19907860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2683}}^1$

素因数の和:2752

約数の個数: 48

約数和(自身を含む): 48698496

約数和(自身を除く): 28790636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2683, 3710, 5366, 7420, 10732, 13415, 18781, 26830, 37562, 53660, 75124, 93905, 142199, 187810, 284398, 375620, 568796, 710995, 995393, 1421990, 1990786, 2843980, 3981572, 4976965, 9953930, 19907860]

約数ペア:

[(1, 19907860), (2, 9953930), (4, 4976965), (5, 3981572), (7, 2843980), (10, 1990786), (14, 1421990), (20, 995393), (28, 710995), (35, 568796), (53, 375620), (70, 284398), (106, 187810), (140, 142199), (212, 93905), (265, 75124), (371, 53660), (530, 37562), (742, 26830), (1060, 18781), (1484, 13415), (1855, 10732), (2683, 7420), (3710, 5366)]