1295280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{257}}^1$

素因数の和:283

約数の個数: 120

約数和(自身を含む): 4990752

約数和(自身を除く): 3695472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 257, 280, 315, 336, 360, 420, 504, 514, 560, 630, 720, 771, 840, 1008, 1028, 1260, 1285, 1542, 1680, 1799, 2056, 2313, 2520, 2570, 3084, 3598, 3855, 4112, 4626, 5040, 5140, 5397, 6168, 7196, 7710, 8995, 9252, 10280, 10794, 11565, 12336, 14392, 15420, 16191, 17990, 18504, 20560, 21588, 23130, 26985, 28784, 30840, 32382, 35980, 37008, 43176, 46260, 53970, 61680, 64764, 71960, 80955, 86352, 92520, 107940, 129528, 143920, 161910, 185040, 215880, 259056, 323820, 431760, 647640, 1295280]

約数ペア:

[(1, 1295280), (2, 647640), (3, 431760), (4, 323820), (5, 259056), (6, 215880), (7, 185040), (8, 161910), (9, 143920), (10, 129528), (12, 107940), (14, 92520), (15, 86352), (16, 80955), (18, 71960), (20, 64764), (21, 61680), (24, 53970), (28, 46260), (30, 43176), (35, 37008), (36, 35980), (40, 32382), (42, 30840), (45, 28784), (48, 26985), (56, 23130), (60, 21588), (63, 20560), (70, 18504), (72, 17990), (80, 16191), (84, 15420), (90, 14392), (105, 12336), (112, 11565), (120, 10794), (126, 10280), (140, 9252), (144, 8995), (168, 7710), (180, 7196), (210, 6168), (240, 5397), (252, 5140), (257, 5040), (280, 4626), (315, 4112), (336, 3855), (360, 3598), (420, 3084), (504, 2570), (514, 2520), (560, 2313), (630, 2056), (720, 1799), (771, 1680), (840, 1542), (1008, 1285), (1028, 1260)]