28780080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{463}}^1$

素因数の和:523

約数の個数: 160

約数和(自身を含む): 104945664

約数和(自身を除く): 76165584

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 37, 40, 42, 48, 56, 60, 70, 74, 80, 84, 105, 111, 112, 120, 140, 148, 168, 185, 210, 222, 240, 259, 280, 296, 336, 370, 420, 444, 463, 518, 555, 560, 592, 740, 777, 840, 888, 926, 1036, 1110, 1295, 1389, 1480, 1554, 1680, 1776, 1852, 2072, 2220, 2315, 2590, 2778, 2960, 3108, 3241, 3704, 3885, 4144, 4440, 4630, 5180, 5556, 6216, 6482, 6945, 7408, 7770, 8880, 9260, 9723, 10360, 11112, 12432, 12964, 13890, 15540, 16205, 17131, 18520, 19446, 20720, 22224, 25928, 27780, 31080, 32410, 34262, 37040, 38892, 48615, 51393, 51856, 55560, 62160, 64820, 68524, 77784, 85655, 97230, 102786, 111120, 119917, 129640, 137048, 155568, 171310, 194460, 205572, 239834, 256965, 259280, 274096, 342620, 359751, 388920, 411144, 479668, 513930, 599585, 685240, 719502, 777840, 822288, 959336, 1027860, 1199170, 1370480, 1439004, 1798755, 1918672, 2055720, 2398340, 2878008, 3597510, 4111440, 4796680, 5756016, 7195020, 9593360, 14390040, 28780080]

約数ペア:

[(1, 28780080), (2, 14390040), (3, 9593360), (4, 7195020), (5, 5756016), (6, 4796680), (7, 4111440), (8, 3597510), (10, 2878008), (12, 2398340), (14, 2055720), (15, 1918672), (16, 1798755), (20, 1439004), (21, 1370480), (24, 1199170), (28, 1027860), (30, 959336), (35, 822288), (37, 777840), (40, 719502), (42, 685240), (48, 599585), (56, 513930), (60, 479668), (70, 411144), (74, 388920), (80, 359751), (84, 342620), (105, 274096), (111, 259280), (112, 256965), (120, 239834), (140, 205572), (148, 194460), (168, 171310), (185, 155568), (210, 137048), (222, 129640), (240, 119917), (259, 111120), (280, 102786), (296, 97230), (336, 85655), (370, 77784), (420, 68524), (444, 64820), (463, 62160), (518, 55560), (555, 51856), (560, 51393), (592, 48615), (740, 38892), (777, 37040), (840, 34262), (888, 32410), (926, 31080), (1036, 27780), (1110, 25928), (1295, 22224), (1389, 20720), (1480, 19446), (1554, 18520), (1680, 17131), (1776, 16205), (1852, 15540), (2072, 13890), (2220, 12964), (2315, 12432), (2590, 11112), (2778, 10360), (2960, 9723), (3108, 9260), (3241, 8880), (3704, 7770), (3885, 7408), (4144, 6945), (4440, 6482), (4630, 6216), (5180, 5556)]