401772100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2053}}^1$

素因数の和:2189

約数の個数: 72

約数和(自身を含む): 927093440

約数和(自身を除く): 525321340

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 103, 190, 206, 380, 412, 475, 515, 950, 1030, 1900, 1957, 2053, 2060, 2575, 3914, 4106, 5150, 7828, 8212, 9785, 10265, 10300, 19570, 20530, 39007, 39140, 41060, 48925, 51325, 78014, 97850, 102650, 156028, 195035, 195700, 205300, 211459, 390070, 422918, 780140, 845836, 975175, 1057295, 1950350, 2114590, 3900700, 4017721, 4229180, 5286475, 8035442, 10572950, 16070884, 20088605, 21145900, 40177210, 80354420, 100443025, 200886050, 401772100]

約数ペア:

[(1, 401772100), (2, 200886050), (4, 100443025), (5, 80354420), (10, 40177210), (19, 21145900), (20, 20088605), (25, 16070884), (38, 10572950), (50, 8035442), (76, 5286475), (95, 4229180), (100, 4017721), (103, 3900700), (190, 2114590), (206, 1950350), (380, 1057295), (412, 975175), (475, 845836), (515, 780140), (950, 422918), (1030, 390070), (1900, 211459), (1957, 205300), (2053, 195700), (2060, 195035), (2575, 156028), (3914, 102650), (4106, 97850), (5150, 78014), (7828, 51325), (8212, 48925), (9785, 41060), (10265, 39140), (10300, 39007), (19570, 20530)]