287707420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2053}}^1$

素因数の和:2100

約数の個数: 144

約数和(自身を含む): 826102368

約数和(自身を除く): 538394948

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 55, 65, 70, 77, 91, 98, 110, 130, 140, 143, 154, 182, 196, 220, 245, 260, 286, 308, 364, 385, 455, 490, 539, 572, 637, 715, 770, 910, 980, 1001, 1078, 1274, 1430, 1540, 1820, 2002, 2053, 2156, 2548, 2695, 2860, 3185, 4004, 4106, 5005, 5390, 6370, 7007, 8212, 10010, 10265, 10780, 12740, 14014, 14371, 20020, 20530, 22583, 26689, 28028, 28742, 35035, 41060, 45166, 53378, 57484, 70070, 71855, 90332, 100597, 106756, 112915, 133445, 140140, 143710, 158081, 186823, 201194, 225830, 266890, 287420, 293579, 316162, 373646, 402388, 451660, 502985, 533780, 587158, 632324, 747292, 790405, 934115, 1005970, 1106567, 1174316, 1307761, 1467895, 1580810, 1868230, 2011940, 2055053, 2213134, 2615522, 2935790, 3161620, 3736460, 4110106, 4426268, 5231044, 5532835, 5871580, 6538805, 8220212, 10275265, 11065670, 13077610, 14385371, 20550530, 22131340, 26155220, 28770742, 41101060, 57541484, 71926855, 143853710, 287707420]

約数ペア:

[(1, 287707420), (2, 143853710), (4, 71926855), (5, 57541484), (7, 41101060), (10, 28770742), (11, 26155220), (13, 22131340), (14, 20550530), (20, 14385371), (22, 13077610), (26, 11065670), (28, 10275265), (35, 8220212), (44, 6538805), (49, 5871580), (52, 5532835), (55, 5231044), (65, 4426268), (70, 4110106), (77, 3736460), (91, 3161620), (98, 2935790), (110, 2615522), (130, 2213134), (140, 2055053), (143, 2011940), (154, 1868230), (182, 1580810), (196, 1467895), (220, 1307761), (245, 1174316), (260, 1106567), (286, 1005970), (308, 934115), (364, 790405), (385, 747292), (455, 632324), (490, 587158), (539, 533780), (572, 502985), (637, 451660), (715, 402388), (770, 373646), (910, 316162), (980, 293579), (1001, 287420), (1078, 266890), (1274, 225830), (1430, 201194), (1540, 186823), (1820, 158081), (2002, 143710), (2053, 140140), (2156, 133445), (2548, 112915), (2695, 106756), (2860, 100597), (3185, 90332), (4004, 71855), (4106, 70070), (5005, 57484), (5390, 53378), (6370, 45166), (7007, 41060), (8212, 35035), (10010, 28742), (10265, 28028), (10780, 26689), (12740, 22583), (14014, 20530), (14371, 20020)]