20780208456

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{456427}}^1$

素因数の和:456714

約数の個数: 64

約数和(自身を含む): 59591239680

約数和(自身を除く): 38811031224

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 271, 542, 813, 1084, 1626, 1897, 2168, 3252, 3794, 5691, 6504, 7588, 11382, 15176, 22764, 45528, 456427, 912854, 1369281, 1825708, 2738562, 3194989, 3651416, 5477124, 6389978, 9584967, 10954248, 12779956, 19169934, 25559912, 38339868, 76679736, 123691717, 247383434, 371075151, 494766868, 742150302, 865842019, 989533736, 1484300604, 1731684038, 2597526057, 2968601208, 3463368076, 5195052114, 6926736152, 10390104228, 20780208456]

約数ペア:

[(1, 20780208456), (2, 10390104228), (3, 6926736152), (4, 5195052114), (6, 3463368076), (7, 2968601208), (8, 2597526057), (12, 1731684038), (14, 1484300604), (21, 989533736), (24, 865842019), (28, 742150302), (42, 494766868), (56, 371075151), (84, 247383434), (168, 123691717), (271, 76679736), (542, 38339868), (813, 25559912), (1084, 19169934), (1626, 12779956), (1897, 10954248), (2168, 9584967), (3252, 6389978), (3794, 5477124), (5691, 3651416), (6504, 3194989), (7588, 2738562), (11382, 1825708), (15176, 1369281), (22764, 912854), (45528, 456427)]