201815880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{240257}}^1$

素因数の和:240278

約数の個数: 64

約数和(自身を含む): 691943040

約数和(自身を除く): 490127160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 240257, 480514, 720771, 961028, 1201285, 1441542, 1681799, 1922056, 2402570, 2883084, 3363598, 3603855, 4805140, 5045397, 5766168, 6727196, 7207710, 8408995, 9610280, 10090794, 13454392, 14415420, 16817990, 20181588, 25226985, 28830840, 33635980, 40363176, 50453970, 67271960, 100907940, 201815880]

約数ペア:

[(1, 201815880), (2, 100907940), (3, 67271960), (4, 50453970), (5, 40363176), (6, 33635980), (7, 28830840), (8, 25226985), (10, 20181588), (12, 16817990), (14, 14415420), (15, 13454392), (20, 10090794), (21, 9610280), (24, 8408995), (28, 7207710), (30, 6727196), (35, 5766168), (40, 5045397), (42, 4805140), (56, 3603855), (60, 3363598), (70, 2883084), (84, 2402570), (105, 1922056), (120, 1681799), (140, 1441542), (168, 1201285), (210, 961028), (280, 720771), (420, 480514), (840, 240257)]