20497008

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1151}}^1$

素因数の和:1222

約数の個数: 80

約数和(自身を含む): 61710336

約数和(自身を除く): 41213328

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 53, 56, 84, 106, 112, 159, 168, 212, 318, 336, 371, 424, 636, 742, 848, 1113, 1151, 1272, 1484, 2226, 2302, 2544, 2968, 3453, 4452, 4604, 5936, 6906, 8057, 8904, 9208, 13812, 16114, 17808, 18416, 24171, 27624, 32228, 48342, 55248, 61003, 64456, 96684, 122006, 128912, 183009, 193368, 244012, 366018, 386736, 427021, 488024, 732036, 854042, 976048, 1281063, 1464072, 1708084, 2562126, 2928144, 3416168, 5124252, 6832336, 10248504, 20497008]

約数ペア:

[(1, 20497008), (2, 10248504), (3, 6832336), (4, 5124252), (6, 3416168), (7, 2928144), (8, 2562126), (12, 1708084), (14, 1464072), (16, 1281063), (21, 976048), (24, 854042), (28, 732036), (42, 488024), (48, 427021), (53, 386736), (56, 366018), (84, 244012), (106, 193368), (112, 183009), (159, 128912), (168, 122006), (212, 96684), (318, 64456), (336, 61003), (371, 55248), (424, 48342), (636, 32228), (742, 27624), (848, 24171), (1113, 18416), (1151, 17808), (1272, 16114), (1484, 13812), (2226, 9208), (2302, 8904), (2544, 8057), (2968, 6906), (3453, 5936), (4452, 4604)]