847900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:214

約数の個数: 36

約数和(自身を含む): 1883560

約数和(自身を除く): 1035660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 139, 244, 278, 305, 556, 610, 695, 1220, 1390, 1525, 2780, 3050, 3475, 6100, 6950, 8479, 13900, 16958, 33916, 42395, 84790, 169580, 211975, 423950, 847900]

約数ペア:

[(1, 847900), (2, 423950), (4, 211975), (5, 169580), (10, 84790), (20, 42395), (25, 33916), (50, 16958), (61, 13900), (100, 8479), (122, 6950), (139, 6100), (244, 3475), (278, 3050), (305, 2780), (556, 1525), (610, 1390), (695, 1220)]