278247960

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{547}}^1$

素因数の和:727

約数の個数: 160

約数和(自身を含む): 942899760

約数和(自身を除く): 664651800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 157, 162, 180, 216, 270, 314, 324, 360, 405, 471, 540, 547, 628, 648, 785, 810, 942, 1080, 1094, 1256, 1413, 1570, 1620, 1641, 1884, 2188, 2355, 2735, 2826, 3140, 3240, 3282, 3768, 4239, 4376, 4710, 4923, 5470, 5652, 6280, 6564, 7065, 8205, 8478, 9420, 9846, 10940, 11304, 12717, 13128, 14130, 14769, 16410, 16956, 18840, 19692, 21195, 21880, 24615, 25434, 28260, 29538, 32820, 33912, 39384, 42390, 44307, 49230, 50868, 56520, 59076, 63585, 65640, 73845, 84780, 85879, 88614, 98460, 101736, 118152, 127170, 147690, 169560, 171758, 177228, 196920, 221535, 254340, 257637, 295380, 343516, 354456, 429395, 443070, 508680, 515274, 590760, 687032, 772911, 858790, 886140, 1030548, 1288185, 1545822, 1717580, 1772280, 2061096, 2318733, 2576370, 3091644, 3435160, 3864555, 4637466, 5152740, 6183288, 6956199, 7729110, 9274932, 10305480, 11593665, 13912398, 15458220, 18549864, 23187330, 27824796, 30916440, 34780995, 46374660, 55649592, 69561990, 92749320, 139123980, 278247960]

約数ペア:

[(1, 278247960), (2, 139123980), (3, 92749320), (4, 69561990), (5, 55649592), (6, 46374660), (8, 34780995), (9, 30916440), (10, 27824796), (12, 23187330), (15, 18549864), (18, 15458220), (20, 13912398), (24, 11593665), (27, 10305480), (30, 9274932), (36, 7729110), (40, 6956199), (45, 6183288), (54, 5152740), (60, 4637466), (72, 3864555), (81, 3435160), (90, 3091644), (108, 2576370), (120, 2318733), (135, 2061096), (157, 1772280), (162, 1717580), (180, 1545822), (216, 1288185), (270, 1030548), (314, 886140), (324, 858790), (360, 772911), (405, 687032), (471, 590760), (540, 515274), (547, 508680), (628, 443070), (648, 429395), (785, 354456), (810, 343516), (942, 295380), (1080, 257637), (1094, 254340), (1256, 221535), (1413, 196920), (1570, 177228), (1620, 171758), (1641, 169560), (1884, 147690), (2188, 127170), (2355, 118152), (2735, 101736), (2826, 98460), (3140, 88614), (3240, 85879), (3282, 84780), (3768, 73845), (4239, 65640), (4376, 63585), (4710, 59076), (4923, 56520), (5470, 50868), (5652, 49230), (6280, 44307), (6564, 42390), (7065, 39384), (8205, 33912), (8478, 32820), (9420, 29538), (9846, 28260), (10940, 25434), (11304, 24615), (12717, 21880), (13128, 21195), (14130, 19692), (14769, 18840), (16410, 16956)]