215996940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:632

約数の個数: 144

約数和(自身を含む): 696215520

約数和(自身を除く): 480218580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 137, 171, 180, 190, 228, 274, 285, 342, 380, 411, 461, 548, 570, 684, 685, 822, 855, 922, 1140, 1233, 1370, 1383, 1644, 1710, 1844, 2055, 2305, 2466, 2603, 2740, 2766, 3420, 4110, 4149, 4610, 4932, 5206, 5532, 6165, 6915, 7809, 8220, 8298, 8759, 9220, 10412, 12330, 13015, 13830, 15618, 16596, 17518, 20745, 23427, 24660, 26030, 26277, 27660, 31236, 35036, 39045, 41490, 43795, 46854, 52060, 52554, 63157, 78090, 78831, 82980, 87590, 93708, 105108, 117135, 126314, 131385, 156180, 157662, 175180, 189471, 234270, 252628, 262770, 315324, 315785, 378942, 394155, 468540, 525540, 568413, 631570, 757884, 788310, 947355, 1136826, 1199983, 1263140, 1576620, 1894710, 2273652, 2399966, 2842065, 3599949, 3789420, 4799932, 5684130, 5999915, 7199898, 10799847, 11368260, 11999830, 14399796, 17999745, 21599694, 23999660, 35999490, 43199388, 53999235, 71998980, 107998470, 215996940]

約数ペア:

[(1, 215996940), (2, 107998470), (3, 71998980), (4, 53999235), (5, 43199388), (6, 35999490), (9, 23999660), (10, 21599694), (12, 17999745), (15, 14399796), (18, 11999830), (19, 11368260), (20, 10799847), (30, 7199898), (36, 5999915), (38, 5684130), (45, 4799932), (57, 3789420), (60, 3599949), (76, 2842065), (90, 2399966), (95, 2273652), (114, 1894710), (137, 1576620), (171, 1263140), (180, 1199983), (190, 1136826), (228, 947355), (274, 788310), (285, 757884), (342, 631570), (380, 568413), (411, 525540), (461, 468540), (548, 394155), (570, 378942), (684, 315785), (685, 315324), (822, 262770), (855, 252628), (922, 234270), (1140, 189471), (1233, 175180), (1370, 157662), (1383, 156180), (1644, 131385), (1710, 126314), (1844, 117135), (2055, 105108), (2305, 93708), (2466, 87590), (2603, 82980), (2740, 78831), (2766, 78090), (3420, 63157), (4110, 52554), (4149, 52060), (4610, 46854), (4932, 43795), (5206, 41490), (5532, 39045), (6165, 35036), (6915, 31236), (7809, 27660), (8220, 26277), (8298, 26030), (8759, 24660), (9220, 23427), (10412, 20745), (12330, 17518), (13015, 16596), (13830, 15618)]