81476220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:177

約数の個数: 192

約数和(自身を含む): 275788800

約数和(自身を除く): 194312580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 49, 60, 70, 74, 84, 98, 105, 107, 111, 140, 147, 148, 185, 196, 210, 214, 222, 245, 259, 294, 321, 343, 370, 420, 428, 444, 490, 518, 535, 555, 588, 642, 686, 735, 740, 749, 777, 980, 1029, 1036, 1070, 1110, 1284, 1295, 1372, 1470, 1498, 1554, 1605, 1715, 1813, 2058, 2140, 2220, 2247, 2590, 2940, 2996, 3108, 3210, 3430, 3626, 3745, 3885, 3959, 4116, 4494, 5145, 5180, 5243, 5439, 6420, 6860, 7252, 7490, 7770, 7918, 8988, 9065, 10290, 10486, 10878, 11235, 11877, 12691, 14980, 15540, 15729, 15836, 18130, 19795, 20580, 20972, 21756, 22470, 23754, 25382, 26215, 27195, 27713, 31458, 36260, 36701, 38073, 39590, 44940, 47508, 50764, 52430, 54390, 55426, 59385, 62916, 63455, 73402, 76146, 78645, 79180, 83139, 104860, 108780, 110103, 110852, 118770, 126910, 138565, 146804, 152292, 157290, 166278, 183505, 190365, 193991, 220206, 237540, 253820, 277130, 314580, 332556, 367010, 380730, 387982, 415695, 440412, 550515, 554260, 581973, 734020, 761460, 775964, 831390, 969955, 1101030, 1163946, 1357937, 1662780, 1939910, 2202060, 2327892, 2715874, 2909865, 3879820, 4073811, 5431748, 5819730, 6789685, 8147622, 11639460, 13579370, 16295244, 20369055, 27158740, 40738110, 81476220]

約数ペア:

[(1, 81476220), (2, 40738110), (3, 27158740), (4, 20369055), (5, 16295244), (6, 13579370), (7, 11639460), (10, 8147622), (12, 6789685), (14, 5819730), (15, 5431748), (20, 4073811), (21, 3879820), (28, 2909865), (30, 2715874), (35, 2327892), (37, 2202060), (42, 1939910), (49, 1662780), (60, 1357937), (70, 1163946), (74, 1101030), (84, 969955), (98, 831390), (105, 775964), (107, 761460), (111, 734020), (140, 581973), (147, 554260), (148, 550515), (185, 440412), (196, 415695), (210, 387982), (214, 380730), (222, 367010), (245, 332556), (259, 314580), (294, 277130), (321, 253820), (343, 237540), (370, 220206), (420, 193991), (428, 190365), (444, 183505), (490, 166278), (518, 157290), (535, 152292), (555, 146804), (588, 138565), (642, 126910), (686, 118770), (735, 110852), (740, 110103), (749, 108780), (777, 104860), (980, 83139), (1029, 79180), (1036, 78645), (1070, 76146), (1110, 73402), (1284, 63455), (1295, 62916), (1372, 59385), (1470, 55426), (1498, 54390), (1554, 52430), (1605, 50764), (1715, 47508), (1813, 44940), (2058, 39590), (2140, 38073), (2220, 36701), (2247, 36260), (2590, 31458), (2940, 27713), (2996, 27195), (3108, 26215), (3210, 25382), (3430, 23754), (3626, 22470), (3745, 21756), (3885, 20972), (3959, 20580), (4116, 19795), (4494, 18130), (5145, 15836), (5180, 15729), (5243, 15540), (5439, 14980), (6420, 12691), (6860, 11877), (7252, 11235), (7490, 10878), (7770, 10486), (7918, 10290), (8988, 9065)]