18931700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^2\times {\mathrm{197}}^1$

素因数の和:273

約数の個数: 54

約数和(自身を含む): 42665238

約数和(自身を除く): 23733538

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 197, 310, 394, 620, 775, 788, 961, 985, 1550, 1922, 1970, 3100, 3844, 3940, 4805, 4925, 6107, 9610, 9850, 12214, 19220, 19700, 24025, 24428, 30535, 48050, 61070, 96100, 122140, 152675, 189317, 305350, 378634, 610700, 757268, 946585, 1893170, 3786340, 4732925, 9465850, 18931700]

約数ペア:

[(1, 18931700), (2, 9465850), (4, 4732925), (5, 3786340), (10, 1893170), (20, 946585), (25, 757268), (31, 610700), (50, 378634), (62, 305350), (100, 189317), (124, 152675), (155, 122140), (197, 96100), (310, 61070), (394, 48050), (620, 30535), (775, 24428), (788, 24025), (961, 19700), (985, 19220), (1550, 12214), (1922, 9850), (1970, 9610), (3100, 6107), (3844, 4925), (3940, 4805)]