28587020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1023

約数の個数: 96

約数和(自身を含む): 78865920

約数和(自身を除く): 50278900

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 133, 140, 154, 190, 209, 220, 266, 308, 380, 385, 418, 532, 665, 770, 836, 977, 1045, 1330, 1463, 1540, 1954, 2090, 2660, 2926, 3908, 4180, 4885, 5852, 6839, 7315, 9770, 10747, 13678, 14630, 18563, 19540, 21494, 27356, 29260, 34195, 37126, 42988, 53735, 68390, 74252, 75229, 92815, 107470, 129941, 136780, 150458, 185630, 204193, 214940, 259882, 300916, 371260, 376145, 408386, 519764, 649705, 752290, 816772, 1020965, 1299410, 1429351, 1504580, 2041930, 2598820, 2858702, 4083860, 5717404, 7146755, 14293510, 28587020]

約数ペア:

[(1, 28587020), (2, 14293510), (4, 7146755), (5, 5717404), (7, 4083860), (10, 2858702), (11, 2598820), (14, 2041930), (19, 1504580), (20, 1429351), (22, 1299410), (28, 1020965), (35, 816772), (38, 752290), (44, 649705), (55, 519764), (70, 408386), (76, 376145), (77, 371260), (95, 300916), (110, 259882), (133, 214940), (140, 204193), (154, 185630), (190, 150458), (209, 136780), (220, 129941), (266, 107470), (308, 92815), (380, 75229), (385, 74252), (418, 68390), (532, 53735), (665, 42988), (770, 37126), (836, 34195), (977, 29260), (1045, 27356), (1330, 21494), (1463, 19540), (1540, 18563), (1954, 14630), (2090, 13678), (2660, 10747), (2926, 9770), (3908, 7315), (4180, 6839), (4885, 5852)]