64720080

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1$

素因数の和:143

約数の個数: 240

約数和(自身を含む): 238109760

約数和(自身を除く): 173389680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 83, 90, 95, 108, 114, 120, 135, 144, 152, 166, 171, 180, 190, 216, 228, 240, 249, 270, 285, 304, 332, 342, 360, 361, 380, 415, 432, 456, 498, 513, 540, 570, 664, 684, 720, 722, 747, 760, 830, 855, 912, 996, 1026, 1080, 1083, 1140, 1245, 1328, 1368, 1444, 1494, 1520, 1577, 1660, 1710, 1805, 1992, 2052, 2160, 2166, 2241, 2280, 2490, 2565, 2736, 2888, 2988, 3154, 3249, 3320, 3420, 3610, 3735, 3984, 4104, 4332, 4482, 4560, 4731, 4980, 5130, 5415, 5776, 5976, 6308, 6498, 6640, 6840, 7220, 7470, 7885, 8208, 8664, 8964, 9462, 9747, 9960, 10260, 10830, 11205, 11952, 12616, 12996, 13680, 14193, 14440, 14940, 15770, 16245, 17328, 17928, 18924, 19494, 19920, 20520, 21660, 22410, 23655, 25232, 25992, 28386, 28880, 29880, 29963, 31540, 32490, 35856, 37848, 38988, 41040, 42579, 43320, 44820, 47310, 48735, 51984, 56772, 59760, 59926, 63080, 64980, 70965, 75696, 77976, 85158, 86640, 89640, 89889, 94620, 97470, 113544, 119852, 126160, 129960, 141930, 149815, 155952, 170316, 179280, 179778, 189240, 194940, 212895, 227088, 239704, 259920, 269667, 283860, 299630, 340632, 359556, 378480, 389880, 425790, 449445, 479408, 539334, 567720, 599260, 681264, 719112, 779760, 809001, 851580, 898890, 1078668, 1135440, 1198520, 1348335, 1438224, 1618002, 1703160, 1797780, 2157336, 2397040, 2696670, 3236004, 3406320, 3595560, 4045005, 4314672, 5393340, 6472008, 7191120, 8090010, 10786680, 12944016, 16180020, 21573360, 32360040, 64720080]

約数ペア:

[(1, 64720080), (2, 32360040), (3, 21573360), (4, 16180020), (5, 12944016), (6, 10786680), (8, 8090010), (9, 7191120), (10, 6472008), (12, 5393340), (15, 4314672), (16, 4045005), (18, 3595560), (19, 3406320), (20, 3236004), (24, 2696670), (27, 2397040), (30, 2157336), (36, 1797780), (38, 1703160), (40, 1618002), (45, 1438224), (48, 1348335), (54, 1198520), (57, 1135440), (60, 1078668), (72, 898890), (76, 851580), (80, 809001), (83, 779760), (90, 719112), (95, 681264), (108, 599260), (114, 567720), (120, 539334), (135, 479408), (144, 449445), (152, 425790), (166, 389880), (171, 378480), (180, 359556), (190, 340632), (216, 299630), (228, 283860), (240, 269667), (249, 259920), (270, 239704), (285, 227088), (304, 212895), (332, 194940), (342, 189240), (360, 179778), (361, 179280), (380, 170316), (415, 155952), (432, 149815), (456, 141930), (498, 129960), (513, 126160), (540, 119852), (570, 113544), (664, 97470), (684, 94620), (720, 89889), (722, 89640), (747, 86640), (760, 85158), (830, 77976), (855, 75696), (912, 70965), (996, 64980), (1026, 63080), (1080, 59926), (1083, 59760), (1140, 56772), (1245, 51984), (1328, 48735), (1368, 47310), (1444, 44820), (1494, 43320), (1520, 42579), (1577, 41040), (1660, 38988), (1710, 37848), (1805, 35856), (1992, 32490), (2052, 31540), (2160, 29963), (2166, 29880), (2241, 28880), (2280, 28386), (2490, 25992), (2565, 25232), (2736, 23655), (2888, 22410), (2988, 21660), (3154, 20520), (3249, 19920), (3320, 19494), (3420, 18924), (3610, 17928), (3735, 17328), (3984, 16245), (4104, 15770), (4332, 14940), (4482, 14440), (4560, 14193), (4731, 13680), (4980, 12996), (5130, 12616), (5415, 11952), (5776, 11205), (5976, 10830), (6308, 10260), (6498, 9960), (6640, 9747), (6840, 9462), (7220, 8964), (7470, 8664), (7885, 8208)]