18661989996

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1\times {\mathrm{2213}}^1$

素因数の和:2760

約数の個数: 144

約数和(自身を含む): 52305873984

約数和(自身を除く): 33643883988

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 37, 39, 52, 74, 78, 111, 117, 148, 156, 222, 234, 333, 444, 468, 481, 487, 666, 962, 974, 1332, 1443, 1461, 1924, 1948, 2213, 2886, 2922, 4329, 4383, 4426, 5772, 5844, 6331, 6639, 8658, 8766, 8852, 12662, 13278, 17316, 17532, 18019, 18993, 19917, 25324, 26556, 28769, 36038, 37986, 39834, 54057, 56979, 57538, 72076, 75972, 79668, 81881, 86307, 108114, 113958, 115076, 162171, 163762, 172614, 216228, 227916, 234247, 245643, 258921, 324342, 327524, 345228, 468494, 491286, 517842, 648684, 702741, 736929, 936988, 982572, 1035684, 1064453, 1077731, 1405482, 1473858, 2108223, 2128906, 2155462, 2810964, 2947716, 3193359, 3233193, 4216446, 4257812, 4310924, 6386718, 6466386, 8432892, 9580077, 9699579, 12773436, 12932772, 14010503, 19160154, 19399158, 28021006, 38320308, 38798316, 39876047, 42031509, 56042012, 79752094, 84063018, 119628141, 126094527, 159504188, 168126036, 239256282, 252189054, 358884423, 478512564, 504378108, 518388611, 717768846, 1036777222, 1435537692, 1555165833, 2073554444, 3110331666, 4665497499, 6220663332, 9330994998, 18661989996]

約数ペア:

[(1, 18661989996), (2, 9330994998), (3, 6220663332), (4, 4665497499), (6, 3110331666), (9, 2073554444), (12, 1555165833), (13, 1435537692), (18, 1036777222), (26, 717768846), (36, 518388611), (37, 504378108), (39, 478512564), (52, 358884423), (74, 252189054), (78, 239256282), (111, 168126036), (117, 159504188), (148, 126094527), (156, 119628141), (222, 84063018), (234, 79752094), (333, 56042012), (444, 42031509), (468, 39876047), (481, 38798316), (487, 38320308), (666, 28021006), (962, 19399158), (974, 19160154), (1332, 14010503), (1443, 12932772), (1461, 12773436), (1924, 9699579), (1948, 9580077), (2213, 8432892), (2886, 6466386), (2922, 6386718), (4329, 4310924), (4383, 4257812), (4426, 4216446), (5772, 3233193), (5844, 3193359), (6331, 2947716), (6639, 2810964), (8658, 2155462), (8766, 2128906), (8852, 2108223), (12662, 1473858), (13278, 1405482), (17316, 1077731), (17532, 1064453), (18019, 1035684), (18993, 982572), (19917, 936988), (25324, 736929), (26556, 702741), (28769, 648684), (36038, 517842), (37986, 491286), (39834, 468494), (54057, 345228), (56979, 327524), (57538, 324342), (72076, 258921), (75972, 245643), (79668, 234247), (81881, 227916), (86307, 216228), (108114, 172614), (113958, 163762), (115076, 162171)]