155561880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{359}}^1$

素因数の和:553

約数の個数: 128

約数和(自身を含む): 491443200

約数和(自身を除く): 335881320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 157, 184, 230, 276, 314, 345, 359, 460, 471, 552, 628, 690, 718, 785, 920, 942, 1077, 1256, 1380, 1436, 1570, 1795, 1884, 2154, 2355, 2760, 2872, 3140, 3590, 3611, 3768, 4308, 4710, 5385, 6280, 7180, 7222, 8257, 8616, 9420, 10770, 10833, 14360, 14444, 16514, 18055, 18840, 21540, 21666, 24771, 28888, 33028, 36110, 41285, 43080, 43332, 49542, 54165, 56363, 66056, 72220, 82570, 86664, 99084, 108330, 112726, 123855, 144440, 165140, 169089, 198168, 216660, 225452, 247710, 281815, 330280, 338178, 433320, 450904, 495420, 563630, 676356, 845445, 990840, 1127260, 1296349, 1352712, 1690890, 2254520, 2592698, 3381780, 3889047, 5185396, 6481745, 6763560, 7778094, 10370792, 12963490, 15556188, 19445235, 25926980, 31112376, 38890470, 51853960, 77780940, 155561880]

約数ペア:

[(1, 155561880), (2, 77780940), (3, 51853960), (4, 38890470), (5, 31112376), (6, 25926980), (8, 19445235), (10, 15556188), (12, 12963490), (15, 10370792), (20, 7778094), (23, 6763560), (24, 6481745), (30, 5185396), (40, 3889047), (46, 3381780), (60, 2592698), (69, 2254520), (92, 1690890), (115, 1352712), (120, 1296349), (138, 1127260), (157, 990840), (184, 845445), (230, 676356), (276, 563630), (314, 495420), (345, 450904), (359, 433320), (460, 338178), (471, 330280), (552, 281815), (628, 247710), (690, 225452), (718, 216660), (785, 198168), (920, 169089), (942, 165140), (1077, 144440), (1256, 123855), (1380, 112726), (1436, 108330), (1570, 99084), (1795, 86664), (1884, 82570), (2154, 72220), (2355, 66056), (2760, 56363), (2872, 54165), (3140, 49542), (3590, 43332), (3611, 43080), (3768, 41285), (4308, 36110), (4710, 33028), (5385, 28888), (6280, 24771), (7180, 21666), (7222, 21540), (8257, 18840), (8616, 18055), (9420, 16514), (10770, 14444), (10833, 14360)]