28380240

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1877}}^1$

素因数の和:1906

約数の個数: 160

約数和(自身を含む): 111778560

約数和(自身を除く): 83398320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1877, 1890, 2160, 2520, 3024, 3754, 3780, 5040, 5631, 7508, 7560, 9385, 11262, 13139, 15016, 15120, 16893, 18770, 22524, 26278, 28155, 30032, 33786, 37540, 39417, 45048, 50679, 52556, 56310, 65695, 67572, 75080, 78834, 84465, 90096, 101358, 105112, 112620, 118251, 131390, 135144, 150160, 157668, 168930, 197085, 202716, 210224, 225240, 236502, 253395, 262780, 270288, 315336, 337860, 354753, 394170, 405432, 450480, 473004, 506790, 525560, 591255, 630672, 675720, 709506, 788340, 810864, 946008, 1013580, 1051120, 1182510, 1351440, 1419012, 1576680, 1773765, 1892016, 2027160, 2365020, 2838024, 3153360, 3547530, 4054320, 4730040, 5676048, 7095060, 9460080, 14190120, 28380240]

約数ペア:

[(1, 28380240), (2, 14190120), (3, 9460080), (4, 7095060), (5, 5676048), (6, 4730040), (7, 4054320), (8, 3547530), (9, 3153360), (10, 2838024), (12, 2365020), (14, 2027160), (15, 1892016), (16, 1773765), (18, 1576680), (20, 1419012), (21, 1351440), (24, 1182510), (27, 1051120), (28, 1013580), (30, 946008), (35, 810864), (36, 788340), (40, 709506), (42, 675720), (45, 630672), (48, 591255), (54, 525560), (56, 506790), (60, 473004), (63, 450480), (70, 405432), (72, 394170), (80, 354753), (84, 337860), (90, 315336), (105, 270288), (108, 262780), (112, 253395), (120, 236502), (126, 225240), (135, 210224), (140, 202716), (144, 197085), (168, 168930), (180, 157668), (189, 150160), (210, 135144), (216, 131390), (240, 118251), (252, 112620), (270, 105112), (280, 101358), (315, 90096), (336, 84465), (360, 78834), (378, 75080), (420, 67572), (432, 65695), (504, 56310), (540, 52556), (560, 50679), (630, 45048), (720, 39417), (756, 37540), (840, 33786), (945, 30032), (1008, 28155), (1080, 26278), (1260, 22524), (1512, 18770), (1680, 16893), (1877, 15120), (1890, 15016), (2160, 13139), (2520, 11262), (3024, 9385), (3754, 7560), (3780, 7508), (5040, 5631)]