20789712

素因数分解:

$2^4\times 3^2\times {\mathrm{59}}^1\times {\mathrm{2447}}^1$

素因数の和:2520

約数の個数: 60

約数和(自身を含む): 59192640

約数和(自身を除く): 38402928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 59, 72, 118, 144, 177, 236, 354, 472, 531, 708, 944, 1062, 1416, 2124, 2447, 2832, 4248, 4894, 7341, 8496, 9788, 14682, 19576, 22023, 29364, 39152, 44046, 58728, 88092, 117456, 144373, 176184, 288746, 352368, 433119, 577492, 866238, 1154984, 1299357, 1732476, 2309968, 2598714, 3464952, 5197428, 6929904, 10394856, 20789712]

約数ペア:

[(1, 20789712), (2, 10394856), (3, 6929904), (4, 5197428), (6, 3464952), (8, 2598714), (9, 2309968), (12, 1732476), (16, 1299357), (18, 1154984), (24, 866238), (36, 577492), (48, 433119), (59, 352368), (72, 288746), (118, 176184), (144, 144373), (177, 117456), (236, 88092), (354, 58728), (472, 44046), (531, 39152), (708, 29364), (944, 22023), (1062, 19576), (1416, 14682), (2124, 9788), (2447, 8496), (2832, 7341), (4248, 4894)]