1289968900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:267

約数の個数: 216

約数和(自身を含む): 3361729280

約数和(自身を除く): 2071760380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 31, 38, 44, 50, 55, 62, 76, 95, 100, 110, 121, 124, 155, 181, 190, 209, 220, 242, 275, 310, 341, 362, 380, 418, 475, 484, 550, 589, 605, 620, 682, 724, 775, 836, 905, 950, 1045, 1100, 1178, 1210, 1364, 1550, 1705, 1810, 1900, 1991, 2090, 2299, 2356, 2420, 2945, 3025, 3100, 3410, 3439, 3620, 3751, 3982, 4180, 4525, 4598, 5225, 5611, 5890, 6050, 6479, 6820, 6878, 7502, 7964, 8525, 9050, 9196, 9955, 10450, 11222, 11495, 11780, 12100, 12958, 13756, 14725, 15004, 17050, 17195, 18100, 18755, 19910, 20900, 21901, 22444, 22990, 25916, 28055, 29450, 32395, 34100, 34390, 37510, 37829, 39820, 43802, 45980, 49775, 56110, 57475, 58900, 61721, 64790, 68780, 71269, 75020, 75658, 85975, 87604, 93775, 99550, 106609, 109505, 112220, 114950, 123442, 129580, 140275, 142538, 151316, 161975, 171950, 187550, 189145, 199100, 213218, 219010, 229900, 246884, 280550, 285076, 308605, 323950, 343900, 356345, 375100, 378290, 416119, 426436, 438020, 533045, 547525, 561100, 617210, 647900, 678931, 712690, 756580, 832238, 945725, 1066090, 1095050, 1172699, 1234420, 1357862, 1425380, 1543025, 1664476, 1781725, 1891450, 2080595, 2132180, 2190100, 2345398, 2665225, 2715724, 3086050, 3394655, 3563450, 3782900, 4161190, 4690796, 5330450, 5863495, 6172100, 6789310, 7126900, 8322380, 10402975, 10660900, 11726990, 12899689, 13578620, 16973275, 20805950, 23453980, 25799378, 29317475, 33946550, 41611900, 51598756, 58634950, 64498445, 67893100, 117269900, 128996890, 257993780, 322492225, 644984450, 1289968900]

約数ペア:

[(1, 1289968900), (2, 644984450), (4, 322492225), (5, 257993780), (10, 128996890), (11, 117269900), (19, 67893100), (20, 64498445), (22, 58634950), (25, 51598756), (31, 41611900), (38, 33946550), (44, 29317475), (50, 25799378), (55, 23453980), (62, 20805950), (76, 16973275), (95, 13578620), (100, 12899689), (110, 11726990), (121, 10660900), (124, 10402975), (155, 8322380), (181, 7126900), (190, 6789310), (209, 6172100), (220, 5863495), (242, 5330450), (275, 4690796), (310, 4161190), (341, 3782900), (362, 3563450), (380, 3394655), (418, 3086050), (475, 2715724), (484, 2665225), (550, 2345398), (589, 2190100), (605, 2132180), (620, 2080595), (682, 1891450), (724, 1781725), (775, 1664476), (836, 1543025), (905, 1425380), (950, 1357862), (1045, 1234420), (1100, 1172699), (1178, 1095050), (1210, 1066090), (1364, 945725), (1550, 832238), (1705, 756580), (1810, 712690), (1900, 678931), (1991, 647900), (2090, 617210), (2299, 561100), (2356, 547525), (2420, 533045), (2945, 438020), (3025, 426436), (3100, 416119), (3410, 378290), (3439, 375100), (3620, 356345), (3751, 343900), (3982, 323950), (4180, 308605), (4525, 285076), (4598, 280550), (5225, 246884), (5611, 229900), (5890, 219010), (6050, 213218), (6479, 199100), (6820, 189145), (6878, 187550), (7502, 171950), (7964, 161975), (8525, 151316), (9050, 142538), (9196, 140275), (9955, 129580), (10450, 123442), (11222, 114950), (11495, 112220), (11780, 109505), (12100, 106609), (12958, 99550), (13756, 93775), (14725, 87604), (15004, 85975), (17050, 75658), (17195, 75020), (18100, 71269), (18755, 68780), (19910, 64790), (20900, 61721), (21901, 58900), (22444, 57475), (22990, 56110), (25916, 49775), (28055, 45980), (29450, 43802), (32395, 39820), (34100, 37829), (34390, 37510)]