18856680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 60410880

約数和(自身を除く): 41554200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 37, 40, 60, 62, 74, 93, 111, 120, 124, 137, 148, 155, 185, 186, 222, 248, 274, 296, 310, 370, 372, 411, 444, 465, 548, 555, 620, 685, 740, 744, 822, 888, 930, 1096, 1110, 1147, 1240, 1370, 1480, 1644, 1860, 2055, 2220, 2294, 2740, 3288, 3441, 3720, 4110, 4247, 4440, 4588, 5069, 5480, 5735, 6882, 8220, 8494, 9176, 10138, 11470, 12741, 13764, 15207, 16440, 16988, 17205, 20276, 21235, 22940, 25345, 25482, 27528, 30414, 33976, 34410, 40552, 42470, 45880, 50690, 50964, 60828, 63705, 68820, 76035, 84940, 101380, 101928, 121656, 127410, 137640, 152070, 157139, 169880, 202760, 254820, 304140, 314278, 471417, 509640, 608280, 628556, 785695, 942834, 1257112, 1571390, 1885668, 2357085, 3142780, 3771336, 4714170, 6285560, 9428340, 18856680]

約数ペア:

[(1, 18856680), (2, 9428340), (3, 6285560), (4, 4714170), (5, 3771336), (6, 3142780), (8, 2357085), (10, 1885668), (12, 1571390), (15, 1257112), (20, 942834), (24, 785695), (30, 628556), (31, 608280), (37, 509640), (40, 471417), (60, 314278), (62, 304140), (74, 254820), (93, 202760), (111, 169880), (120, 157139), (124, 152070), (137, 137640), (148, 127410), (155, 121656), (185, 101928), (186, 101380), (222, 84940), (248, 76035), (274, 68820), (296, 63705), (310, 60828), (370, 50964), (372, 50690), (411, 45880), (444, 42470), (465, 40552), (548, 34410), (555, 33976), (620, 30414), (685, 27528), (740, 25482), (744, 25345), (822, 22940), (888, 21235), (930, 20276), (1096, 17205), (1110, 16988), (1147, 16440), (1240, 15207), (1370, 13764), (1480, 12741), (1644, 11470), (1860, 10138), (2055, 9176), (2220, 8494), (2294, 8220), (2740, 6882), (3288, 5735), (3441, 5480), (3720, 5069), (4110, 4588), (4247, 4440)]