815681100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1051}}^1$

素因数の和:1280

約数の個数: 144

約数和(自身を含む): 2556780800

約数和(自身を除く): 1741099700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 199, 260, 300, 325, 390, 398, 597, 650, 780, 796, 975, 995, 1051, 1194, 1300, 1950, 1990, 2102, 2388, 2587, 2985, 3153, 3900, 3980, 4204, 4975, 5174, 5255, 5970, 6306, 7761, 9950, 10348, 10510, 11940, 12612, 12935, 13663, 14925, 15522, 15765, 19900, 21020, 25870, 26275, 27326, 29850, 31044, 31530, 38805, 40989, 51740, 52550, 54652, 59700, 63060, 64675, 68315, 77610, 78825, 81978, 105100, 129350, 136630, 155220, 157650, 163956, 194025, 204945, 209149, 258700, 273260, 315300, 341575, 388050, 409890, 418298, 627447, 683150, 776100, 819780, 836596, 1024725, 1045745, 1254894, 1366300, 2049450, 2091490, 2509788, 2718937, 3137235, 4098900, 4182980, 5228725, 5437874, 6274470, 8156811, 10457450, 10875748, 12548940, 13594685, 15686175, 16313622, 20914900, 27189370, 31372350, 32627244, 40784055, 54378740, 62744700, 67973425, 81568110, 135946850, 163136220, 203920275, 271893700, 407840550, 815681100]

約数ペア:

[(1, 815681100), (2, 407840550), (3, 271893700), (4, 203920275), (5, 163136220), (6, 135946850), (10, 81568110), (12, 67973425), (13, 62744700), (15, 54378740), (20, 40784055), (25, 32627244), (26, 31372350), (30, 27189370), (39, 20914900), (50, 16313622), (52, 15686175), (60, 13594685), (65, 12548940), (75, 10875748), (78, 10457450), (100, 8156811), (130, 6274470), (150, 5437874), (156, 5228725), (195, 4182980), (199, 4098900), (260, 3137235), (300, 2718937), (325, 2509788), (390, 2091490), (398, 2049450), (597, 1366300), (650, 1254894), (780, 1045745), (796, 1024725), (975, 836596), (995, 819780), (1051, 776100), (1194, 683150), (1300, 627447), (1950, 418298), (1990, 409890), (2102, 388050), (2388, 341575), (2587, 315300), (2985, 273260), (3153, 258700), (3900, 209149), (3980, 204945), (4204, 194025), (4975, 163956), (5174, 157650), (5255, 155220), (5970, 136630), (6306, 129350), (7761, 105100), (9950, 81978), (10348, 78825), (10510, 77610), (11940, 68315), (12612, 64675), (12935, 63060), (13663, 59700), (14925, 54652), (15522, 52550), (15765, 51740), (19900, 40989), (21020, 38805), (25870, 31530), (26275, 31044), (27326, 29850)]