198808847860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1987}}^1\times {\mathrm{714677}}^1$

素因数の和:716680

約数の個数: 48

約数和(自身を含む): 477382034304

約数和(自身を除く): 278573186444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1987, 3974, 7948, 9935, 13909, 19870, 27818, 39740, 55636, 69545, 139090, 278180, 714677, 1429354, 2858708, 3573385, 5002739, 7146770, 10005478, 14293540, 20010956, 25013695, 50027390, 100054780, 1420063199, 2840126398, 5680252796, 7100315995, 9940442393, 14200631990, 19880884786, 28401263980, 39761769572, 49702211965, 99404423930, 198808847860]

約数ペア:

[(1, 198808847860), (2, 99404423930), (4, 49702211965), (5, 39761769572), (7, 28401263980), (10, 19880884786), (14, 14200631990), (20, 9940442393), (28, 7100315995), (35, 5680252796), (70, 2840126398), (140, 1420063199), (1987, 100054780), (3974, 50027390), (7948, 25013695), (9935, 20010956), (13909, 14293540), (19870, 10005478), (27818, 7146770), (39740, 5002739), (55636, 3573385), (69545, 2858708), (139090, 1429354), (278180, 714677)]