257891760

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{51169}}^1$

素因数の和:51195

約数の個数: 120

約数和(自身を含む): 989832480

約数和(自身を除く): 731940720

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, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 51169, 102338, 153507, 204676, 255845, 307014, 358183, 409352, 460521, 511690, 614028, 716366, 767535, 818704, 921042, 1023380, 1074549, 1228056, 1432732, 1535070, 1790915, 1842084, 2046760, 2149098, 2302605, 2456112, 2865464, 3070140, 3223647, 3581830, 3684168, 4093520, 4298196, 4605210, 5372745, 5730928, 6140280, 6447294, 7163660, 7368336, 8596392, 9210420, 10745490, 12280560, 12894588, 14327320, 16118235, 17192784, 18420840, 21490980, 25789176, 28654640, 32236470, 36841680, 42981960, 51578352, 64472940, 85963920, 128945880, 257891760]

約数ペア:

[(1, 257891760), (2, 128945880), (3, 85963920), (4, 64472940), (5, 51578352), (6, 42981960), (7, 36841680), (8, 32236470), (9, 28654640), (10, 25789176), (12, 21490980), (14, 18420840), (15, 17192784), (16, 16118235), (18, 14327320), (20, 12894588), (21, 12280560), (24, 10745490), (28, 9210420), (30, 8596392), (35, 7368336), (36, 7163660), (40, 6447294), (42, 6140280), (45, 5730928), (48, 5372745), (56, 4605210), (60, 4298196), (63, 4093520), (70, 3684168), (72, 3581830), (80, 3223647), (84, 3070140), (90, 2865464), (105, 2456112), (112, 2302605), (120, 2149098), (126, 2046760), (140, 1842084), (144, 1790915), (168, 1535070), (180, 1432732), (210, 1228056), (240, 1074549), (252, 1023380), (280, 921042), (315, 818704), (336, 767535), (360, 716366), (420, 614028), (504, 511690), (560, 460521), (630, 409352), (720, 358183), (840, 307014), (1008, 255845), (1260, 204676), (1680, 153507), (2520, 102338), (5040, 51169)]