19909872

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^2\times {\mathrm{383}}^1$

素因数の和:435

約数の個数: 90

約数和(自身を含む): 58960512

約数和(自身を除く): 39050640

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 361, 383, 456, 684, 722, 766, 912, 1083, 1149, 1368, 1444, 1532, 2166, 2298, 2736, 2888, 3064, 3249, 3447, 4332, 4596, 5776, 6128, 6498, 6894, 7277, 8664, 9192, 12996, 13788, 14554, 17328, 18384, 21831, 25992, 27576, 29108, 43662, 51984, 55152, 58216, 65493, 87324, 116432, 130986, 138263, 174648, 261972, 276526, 349296, 414789, 523944, 553052, 829578, 1047888, 1106104, 1244367, 1659156, 2212208, 2488734, 3318312, 4977468, 6636624, 9954936, 19909872]

約数ペア:

[(1, 19909872), (2, 9954936), (3, 6636624), (4, 4977468), (6, 3318312), (8, 2488734), (9, 2212208), (12, 1659156), (16, 1244367), (18, 1106104), (19, 1047888), (24, 829578), (36, 553052), (38, 523944), (48, 414789), (57, 349296), (72, 276526), (76, 261972), (114, 174648), (144, 138263), (152, 130986), (171, 116432), (228, 87324), (304, 65493), (342, 58216), (361, 55152), (383, 51984), (456, 43662), (684, 29108), (722, 27576), (766, 25992), (912, 21831), (1083, 18384), (1149, 17328), (1368, 14554), (1444, 13788), (1532, 12996), (2166, 9192), (2298, 8664), (2736, 7277), (2888, 6894), (3064, 6498), (3249, 6128), (3447, 5776), (4332, 4596)]