65281920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{281}}^1$

素因数の和:325

約数の個数: 192

約数和(自身を含む): 229536720

約数和(自身を除く): 164254800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 121, 128, 132, 160, 165, 176, 192, 220, 240, 242, 264, 281, 320, 330, 352, 363, 384, 440, 480, 484, 528, 562, 605, 640, 660, 704, 726, 843, 880, 960, 968, 1056, 1124, 1210, 1320, 1405, 1408, 1452, 1686, 1760, 1815, 1920, 1936, 2112, 2248, 2420, 2640, 2810, 2904, 3091, 3372, 3520, 3630, 3872, 4215, 4224, 4496, 4840, 5280, 5620, 5808, 6182, 6744, 7040, 7260, 7744, 8430, 8992, 9273, 9680, 10560, 11240, 11616, 12364, 13488, 14520, 15455, 15488, 16860, 17984, 18546, 19360, 21120, 22480, 23232, 24728, 26976, 29040, 30910, 33720, 34001, 35968, 37092, 38720, 44960, 46365, 46464, 49456, 53952, 58080, 61820, 67440, 68002, 74184, 77440, 89920, 92730, 98912, 102003, 107904, 116160, 123640, 134880, 136004, 148368, 170005, 179840, 185460, 197824, 204006, 232320, 247280, 269760, 272008, 296736, 340010, 370920, 395648, 408012, 494560, 510015, 539520, 544016, 593472, 680020, 741840, 816024, 989120, 1020030, 1088032, 1186944, 1360040, 1483680, 1632048, 1978240, 2040060, 2176064, 2720080, 2967360, 3264096, 4080120, 4352128, 5440160, 5934720, 6528192, 8160240, 10880320, 13056384, 16320480, 21760640, 32640960, 65281920]

約数ペア:

[(1, 65281920), (2, 32640960), (3, 21760640), (4, 16320480), (5, 13056384), (6, 10880320), (8, 8160240), (10, 6528192), (11, 5934720), (12, 5440160), (15, 4352128), (16, 4080120), (20, 3264096), (22, 2967360), (24, 2720080), (30, 2176064), (32, 2040060), (33, 1978240), (40, 1632048), (44, 1483680), (48, 1360040), (55, 1186944), (60, 1088032), (64, 1020030), (66, 989120), (80, 816024), (88, 741840), (96, 680020), (110, 593472), (120, 544016), (121, 539520), (128, 510015), (132, 494560), (160, 408012), (165, 395648), (176, 370920), (192, 340010), (220, 296736), (240, 272008), (242, 269760), (264, 247280), (281, 232320), (320, 204006), (330, 197824), (352, 185460), (363, 179840), (384, 170005), (440, 148368), (480, 136004), (484, 134880), (528, 123640), (562, 116160), (605, 107904), (640, 102003), (660, 98912), (704, 92730), (726, 89920), (843, 77440), (880, 74184), (960, 68002), (968, 67440), (1056, 61820), (1124, 58080), (1210, 53952), (1320, 49456), (1405, 46464), (1408, 46365), (1452, 44960), (1686, 38720), (1760, 37092), (1815, 35968), (1920, 34001), (1936, 33720), (2112, 30910), (2248, 29040), (2420, 26976), (2640, 24728), (2810, 23232), (2904, 22480), (3091, 21120), (3372, 19360), (3520, 18546), (3630, 17984), (3872, 16860), (4215, 15488), (4224, 15455), (4496, 14520), (4840, 13488), (5280, 12364), (5620, 11616), (5808, 11240), (6182, 10560), (6744, 9680), (7040, 9273), (7260, 8992), (7744, 8430)]