2000207900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{10853}}^1$

素因数の和:10983

約数の個数: 72

約数和(自身を含む): 4616423280

約数和(自身を除く): 2616215380

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 97, 100, 190, 194, 380, 388, 475, 485, 950, 970, 1843, 1900, 1940, 2425, 3686, 4850, 7372, 9215, 9700, 10853, 18430, 21706, 36860, 43412, 46075, 54265, 92150, 108530, 184300, 206207, 217060, 271325, 412414, 542650, 824828, 1031035, 1052741, 1085300, 2062070, 2105482, 4124140, 4210964, 5155175, 5263705, 10310350, 10527410, 20002079, 20620700, 21054820, 26318525, 40004158, 52637050, 80008316, 100010395, 105274100, 200020790, 400041580, 500051975, 1000103950, 2000207900]

約数ペア:

[(1, 2000207900), (2, 1000103950), (4, 500051975), (5, 400041580), (10, 200020790), (19, 105274100), (20, 100010395), (25, 80008316), (38, 52637050), (50, 40004158), (76, 26318525), (95, 21054820), (97, 20620700), (100, 20002079), (190, 10527410), (194, 10310350), (380, 5263705), (388, 5155175), (475, 4210964), (485, 4124140), (950, 2105482), (970, 2062070), (1843, 1085300), (1900, 1052741), (1940, 1031035), (2425, 824828), (3686, 542650), (4850, 412414), (7372, 271325), (9215, 217060), (9700, 206207), (10853, 184300), (18430, 108530), (21706, 92150), (36860, 54265), (43412, 46075)]