38861620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1997}}^1$

素因数の和:2152

約数の個数: 48

約数和(自身を含む): 93985920

約数和(自身を除く): 55124300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 1997, 2780, 3892, 3994, 4865, 7988, 9730, 9985, 13979, 19460, 19970, 27958, 39940, 55916, 69895, 139790, 277583, 279580, 555166, 1110332, 1387915, 1943081, 2775830, 3886162, 5551660, 7772324, 9715405, 19430810, 38861620]

約数ペア:

[(1, 38861620), (2, 19430810), (4, 9715405), (5, 7772324), (7, 5551660), (10, 3886162), (14, 2775830), (20, 1943081), (28, 1387915), (35, 1110332), (70, 555166), (139, 279580), (140, 277583), (278, 139790), (556, 69895), (695, 55916), (973, 39940), (1390, 27958), (1946, 19970), (1997, 19460), (2780, 13979), (3892, 9985), (3994, 9730), (4865, 7988)]