154981120

素因数分解:

$2^8\times 5^1\times 7^3\times {\mathrm{353}}^1$

素因数の和:395

約数の個数: 144

約数和(自身を含む): 434145600

約数和(自身を除く): 279164480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 343, 353, 392, 448, 490, 560, 640, 686, 706, 784, 896, 980, 1120, 1280, 1372, 1412, 1568, 1715, 1765, 1792, 1960, 2240, 2471, 2744, 2824, 3136, 3430, 3530, 3920, 4480, 4942, 5488, 5648, 6272, 6860, 7060, 7840, 8960, 9884, 10976, 11296, 12355, 12544, 13720, 14120, 15680, 17297, 19768, 21952, 22592, 24710, 27440, 28240, 31360, 34594, 39536, 43904, 45184, 49420, 54880, 56480, 62720, 69188, 79072, 86485, 87808, 90368, 98840, 109760, 112960, 121079, 138376, 158144, 172970, 197680, 219520, 225920, 242158, 276752, 316288, 345940, 395360, 439040, 451840, 484316, 553504, 605395, 632576, 691880, 790720, 968632, 1107008, 1210790, 1383760, 1581440, 1937264, 2214016, 2421580, 2767520, 3162880, 3874528, 4428032, 4843160, 5535040, 7749056, 9686320, 11070080, 15498112, 19372640, 22140160, 30996224, 38745280, 77490560, 154981120]

約数ペア:

[(1, 154981120), (2, 77490560), (4, 38745280), (5, 30996224), (7, 22140160), (8, 19372640), (10, 15498112), (14, 11070080), (16, 9686320), (20, 7749056), (28, 5535040), (32, 4843160), (35, 4428032), (40, 3874528), (49, 3162880), (56, 2767520), (64, 2421580), (70, 2214016), (80, 1937264), (98, 1581440), (112, 1383760), (128, 1210790), (140, 1107008), (160, 968632), (196, 790720), (224, 691880), (245, 632576), (256, 605395), (280, 553504), (320, 484316), (343, 451840), (353, 439040), (392, 395360), (448, 345940), (490, 316288), (560, 276752), (640, 242158), (686, 225920), (706, 219520), (784, 197680), (896, 172970), (980, 158144), (1120, 138376), (1280, 121079), (1372, 112960), (1412, 109760), (1568, 98840), (1715, 90368), (1765, 87808), (1792, 86485), (1960, 79072), (2240, 69188), (2471, 62720), (2744, 56480), (2824, 54880), (3136, 49420), (3430, 45184), (3530, 43904), (3920, 39536), (4480, 34594), (4942, 31360), (5488, 28240), (5648, 27440), (6272, 24710), (6860, 22592), (7060, 21952), (7840, 19768), (8960, 17297), (9884, 15680), (10976, 14120), (11296, 13720), (12355, 12544)]