259446720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20789}}^1$

素因数の和:20822

約数の個数: 112

約数和(自身を含む): 887150880

約数和(自身を除く): 627704160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 12480, 20789, 41578, 62367, 83156, 103945, 124734, 166312, 207890, 249468, 270257, 311835, 332624, 415780, 498936, 540514, 623670, 665248, 810771, 831560, 997872, 1081028, 1247340, 1330496, 1351285, 1621542, 1663120, 1995744, 2162056, 2494680, 2702570, 3243084, 3326240, 3991488, 4053855, 4324112, 4989360, 5405140, 6486168, 6652480, 8107710, 8648224, 9978720, 10810280, 12972336, 16215420, 17296448, 19957440, 21620560, 25944672, 32430840, 43241120, 51889344, 64861680, 86482240, 129723360, 259446720]

約数ペア:

[(1, 259446720), (2, 129723360), (3, 86482240), (4, 64861680), (5, 51889344), (6, 43241120), (8, 32430840), (10, 25944672), (12, 21620560), (13, 19957440), (15, 17296448), (16, 16215420), (20, 12972336), (24, 10810280), (26, 9978720), (30, 8648224), (32, 8107710), (39, 6652480), (40, 6486168), (48, 5405140), (52, 4989360), (60, 4324112), (64, 4053855), (65, 3991488), (78, 3326240), (80, 3243084), (96, 2702570), (104, 2494680), (120, 2162056), (130, 1995744), (156, 1663120), (160, 1621542), (192, 1351285), (195, 1330496), (208, 1247340), (240, 1081028), (260, 997872), (312, 831560), (320, 810771), (390, 665248), (416, 623670), (480, 540514), (520, 498936), (624, 415780), (780, 332624), (832, 311835), (960, 270257), (1040, 249468), (1248, 207890), (1560, 166312), (2080, 124734), (2496, 103945), (3120, 83156), (4160, 62367), (6240, 41578), (12480, 20789)]