30877980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2043

約数の個数: 96

約数和(自身を含む): 101531136

約数和(自身を除く): 70653156

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 105, 111, 140, 148, 185, 210, 222, 259, 370, 420, 444, 518, 555, 740, 777, 1036, 1110, 1295, 1554, 1987, 2220, 2590, 3108, 3885, 3974, 5180, 5961, 7770, 7948, 9935, 11922, 13909, 15540, 19870, 23844, 27818, 29805, 39740, 41727, 55636, 59610, 69545, 73519, 83454, 119220, 139090, 147038, 166908, 208635, 220557, 278180, 294076, 367595, 417270, 441114, 514633, 735190, 834540, 882228, 1029266, 1102785, 1470380, 1543899, 2058532, 2205570, 2573165, 3087798, 4411140, 5146330, 6175596, 7719495, 10292660, 15438990, 30877980]

約数ペア:

[(1, 30877980), (2, 15438990), (3, 10292660), (4, 7719495), (5, 6175596), (6, 5146330), (7, 4411140), (10, 3087798), (12, 2573165), (14, 2205570), (15, 2058532), (20, 1543899), (21, 1470380), (28, 1102785), (30, 1029266), (35, 882228), (37, 834540), (42, 735190), (60, 514633), (70, 441114), (74, 417270), (84, 367595), (105, 294076), (111, 278180), (140, 220557), (148, 208635), (185, 166908), (210, 147038), (222, 139090), (259, 119220), (370, 83454), (420, 73519), (444, 69545), (518, 59610), (555, 55636), (740, 41727), (777, 39740), (1036, 29805), (1110, 27818), (1295, 23844), (1554, 19870), (1987, 15540), (2220, 13909), (2590, 11922), (3108, 9935), (3885, 7948), (3974, 7770), (5180, 5961)]