281308680

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13709}}^1$

素因数の和:13748

約数の個数: 128

約数和(自身を含む): 987120000

約数和(自身を除く): 705811320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 2052, 2280, 2565, 3420, 4104, 5130, 6840, 10260, 13709, 20520, 27418, 41127, 54836, 68545, 82254, 109672, 123381, 137090, 164508, 205635, 246762, 260471, 274180, 329016, 370143, 411270, 493524, 520942, 548360, 616905, 740286, 781413, 822540, 987048, 1041884, 1233810, 1302355, 1480572, 1562826, 1645080, 1850715, 2083768, 2344239, 2467620, 2604710, 2961144, 3125652, 3701430, 3907065, 4688478, 4935240, 5209420, 6251304, 7032717, 7402860, 7814130, 9376956, 10418840, 11721195, 14065434, 14805720, 15628260, 18753912, 23442390, 28130868, 31256520, 35163585, 46884780, 56261736, 70327170, 93769560, 140654340, 281308680]

約数ペア:

[(1, 281308680), (2, 140654340), (3, 93769560), (4, 70327170), (5, 56261736), (6, 46884780), (8, 35163585), (9, 31256520), (10, 28130868), (12, 23442390), (15, 18753912), (18, 15628260), (19, 14805720), (20, 14065434), (24, 11721195), (27, 10418840), (30, 9376956), (36, 7814130), (38, 7402860), (40, 7032717), (45, 6251304), (54, 5209420), (57, 4935240), (60, 4688478), (72, 3907065), (76, 3701430), (90, 3125652), (95, 2961144), (108, 2604710), (114, 2467620), (120, 2344239), (135, 2083768), (152, 1850715), (171, 1645080), (180, 1562826), (190, 1480572), (216, 1302355), (228, 1233810), (270, 1041884), (285, 987048), (342, 822540), (360, 781413), (380, 740286), (456, 616905), (513, 548360), (540, 520942), (570, 493524), (684, 411270), (760, 370143), (855, 329016), (1026, 274180), (1080, 260471), (1140, 246762), (1368, 205635), (1710, 164508), (2052, 137090), (2280, 123381), (2565, 109672), (3420, 82254), (4104, 68545), (5130, 54836), (6840, 41127), (10260, 27418), (13709, 20520)]