214791780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{511409}}^1$

素因数の和:511428

約数の個数: 48

約数和(自身を含む): 687335040

約数和(自身を除く): 472543260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 511409, 1022818, 1534227, 2045636, 2557045, 3068454, 3579863, 5114090, 6136908, 7159726, 7671135, 10228180, 10739589, 14319452, 15342270, 17899315, 21479178, 30684540, 35798630, 42958356, 53697945, 71597260, 107395890, 214791780]

約数ペア:

[(1, 214791780), (2, 107395890), (3, 71597260), (4, 53697945), (5, 42958356), (6, 35798630), (7, 30684540), (10, 21479178), (12, 17899315), (14, 15342270), (15, 14319452), (20, 10739589), (21, 10228180), (28, 7671135), (30, 7159726), (35, 6136908), (42, 5114090), (60, 3579863), (70, 3068454), (84, 2557045), (105, 2045636), (140, 1534227), (210, 1022818), (420, 511409)]