18894540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{44987}}^1$

素因数の和:45006

約数の個数: 48

約数和(自身を含む): 60463872

約数和(自身を除く): 41569332

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, 44987, 89974, 134961, 179948, 224935, 269922, 314909, 449870, 539844, 629818, 674805, 899740, 944727, 1259636, 1349610, 1574545, 1889454, 2699220, 3149090, 3778908, 4723635, 6298180, 9447270, 18894540]

約数ペア:

[(1, 18894540), (2, 9447270), (3, 6298180), (4, 4723635), (5, 3778908), (6, 3149090), (7, 2699220), (10, 1889454), (12, 1574545), (14, 1349610), (15, 1259636), (20, 944727), (21, 899740), (28, 674805), (30, 629818), (35, 539844), (42, 449870), (60, 314909), (70, 269922), (84, 224935), (105, 179948), (140, 134961), (210, 89974), (420, 44987)]