38954860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3919}}^1$

素因数の和:4006

約数の個数: 48

約数和(自身を含む): 94832640

約数和(自身を除く): 55877780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 3919, 4970, 7838, 9940, 15676, 19595, 27433, 39190, 54866, 78380, 109732, 137165, 274330, 278249, 548660, 556498, 1112996, 1391245, 1947743, 2782490, 3895486, 5564980, 7790972, 9738715, 19477430, 38954860]

約数ペア:

[(1, 38954860), (2, 19477430), (4, 9738715), (5, 7790972), (7, 5564980), (10, 3895486), (14, 2782490), (20, 1947743), (28, 1391245), (35, 1112996), (70, 556498), (71, 548660), (140, 278249), (142, 274330), (284, 137165), (355, 109732), (497, 78380), (710, 54866), (994, 39190), (1420, 27433), (1988, 19595), (2485, 15676), (3919, 9940), (4970, 7838)]