20728045360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1283}}^1\times {\mathrm{1669}}^1$

素因数の和:2987

約数の個数: 120

約数和(自身を含む): 53045198640

約数和(自身を除く): 32317153280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1283, 1669, 1936, 2420, 2566, 3338, 4840, 5132, 6415, 6676, 8345, 9680, 10264, 12830, 13352, 14113, 16690, 18359, 20528, 25660, 26704, 28226, 33380, 36718, 51320, 56452, 66760, 70565, 73436, 91795, 102640, 112904, 133520, 141130, 146872, 155243, 183590, 201949, 225808, 282260, 293744, 310486, 367180, 403898, 564520, 620972, 734360, 776215, 807796, 1009745, 1129040, 1241944, 1468720, 1552430, 1615592, 2019490, 2141327, 2483888, 3104860, 3231184, 4038980, 4282654, 6209720, 8077960, 8565308, 10706635, 12419440, 16155920, 17130616, 21413270, 23554597, 34261232, 42826540, 47109194, 85653080, 94218388, 117772985, 171306160, 188436776, 235545970, 259100567, 376873552, 471091940, 518201134, 942183880, 1036402268, 1295502835, 1884367760, 2072804536, 2591005670, 4145609072, 5182011340, 10364022680, 20728045360]

約数ペア:

[(1, 20728045360), (2, 10364022680), (4, 5182011340), (5, 4145609072), (8, 2591005670), (10, 2072804536), (11, 1884367760), (16, 1295502835), (20, 1036402268), (22, 942183880), (40, 518201134), (44, 471091940), (55, 376873552), (80, 259100567), (88, 235545970), (110, 188436776), (121, 171306160), (176, 117772985), (220, 94218388), (242, 85653080), (440, 47109194), (484, 42826540), (605, 34261232), (880, 23554597), (968, 21413270), (1210, 17130616), (1283, 16155920), (1669, 12419440), (1936, 10706635), (2420, 8565308), (2566, 8077960), (3338, 6209720), (4840, 4282654), (5132, 4038980), (6415, 3231184), (6676, 3104860), (8345, 2483888), (9680, 2141327), (10264, 2019490), (12830, 1615592), (13352, 1552430), (14113, 1468720), (16690, 1241944), (18359, 1129040), (20528, 1009745), (25660, 807796), (26704, 776215), (28226, 734360), (33380, 620972), (36718, 564520), (51320, 403898), (56452, 367180), (66760, 310486), (70565, 293744), (73436, 282260), (91795, 225808), (102640, 201949), (112904, 183590), (133520, 155243), (141130, 146872)]