20026580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2699}}^1$

素因数の和:2768

約数の個数: 48

約数和(自身を含む): 48988800

約数和(自身を除く): 28962220

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, 2699, 3710, 5398, 7420, 10796, 13495, 18893, 26990, 37786, 53980, 75572, 94465, 143047, 188930, 286094, 377860, 572188, 715235, 1001329, 1430470, 2002658, 2860940, 4005316, 5006645, 10013290, 20026580]

約数ペア:

[(1, 20026580), (2, 10013290), (4, 5006645), (5, 4005316), (7, 2860940), (10, 2002658), (14, 1430470), (20, 1001329), (28, 715235), (35, 572188), (53, 377860), (70, 286094), (106, 188930), (140, 143047), (212, 94465), (265, 75572), (371, 53980), (530, 37786), (742, 26990), (1060, 18893), (1484, 13495), (1855, 10796), (2699, 7420), (3710, 5398)]